Celtic Christianity

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A Celtic Cross in Knock, Ireland.

Celtic Christianity or Insular Christianity refers broadly to certain features of Christianity that were common, or held to be common, across the Celtic-speaking world during the Early Middle Ages.[1] "Celtic Christianity" has been conceived of with differing levels of specificity: some writers have thought of it as a distinct "Celtic Church" of Chalcedonian Christianity uniting the Celtic peoples and distinguishing them from what would become the Roman Catholic Church after the Great Schism, while others classify it as simply a set of distinctive practices occurring in those areas.[2] Scholars now reject the former notion, but note that there were certain traditions and practices used in both the Irish and British churches but not in the wider Christian world.[3] These include a distinctive system for determining the dating of Easter, a style of monastic tonsure, a unique system of penance, and the popularity of going into "exile for Christ".[3] Additionally, there were other practices that developed in certain parts of Britain or Ireland, but which are not known to have spread beyond a particular region. The term therefore denotes regional practices among the insular churches and their associates, rather than actual theological differences.

The term "Celtic Church" is deprecated by many historians as it implies a unified and identifiable entity entirely separate from the mainstream of Western Christendom.[4] Others prefer the term "Insular Christianity".[5] As Patrick Wormald explained, "One of the common misconceptions is that there was a 'Roman Church' to which the 'Celtic' was nationally opposed."[6] In German, the term "Iroschottisch" is used, with Lutz von Padberg placing the same caveat about a supposed dichotomy between Irish-Scottish and Roman Christianity.[7] Celtic-speaking areas were part of Latin Christendom as a whole at a time in which there was significant regional variation of liturgy and structure with a general collective veneration of the Bishop of Rome that was no less intense in Celtic areas.[8]

Nonetheless, it is possible to talk about the development and spread of distinctive traditions, especially in the sixth and seventh centuries. Some elements may have been introduced to Ireland by the Briton Saint Patrick, later others spread from Ireland to Britain with the Irish missions of Saint Columba. The histories of the Irish, Welsh, Scots, Breton, Cornish, and Manx Churches diverge significantly after the eighth century (resulting in a great difference between even rival Irish traditions).[9] Later interest in the subject has led to a series of "Celtic Christian revival" movements, which have shaped popular perceptions of the Celts and their religious practices.

Definition[edit]

"Celtic Christianity" has been conceived of in different ways at different times. Writings on the topic frequently say more about the time in which they originate than the historical state of Christianity in the early medieval Celtic-speaking world, and many notions are now discredited in modern academic discourse.[10][11] One particularly prominent feature ascribed to Celtic Christianity is that it is supposedly inherently distinct from – and generally opposed to – the Catholic Church.[12] Other common claims are that Celtic Christianity denied the authority of the Pope, was less authoritarian than the Catholic Church, more spiritual, friendlier to women, more connected with nature, and more comfortable dealing with the ancient Celtic religion.[12] One view, which gained substantial scholarly traction in the 19th century, was that there was a "Celtic Church", a significantly organised Christian body or denomination uniting the Celtic peoples and separating them from the "Roman" church of continental Europe.[13] Others have been content to speak of "Celtic Christianity" as consisting of certain traditions and beliefs intrinsic to the Celts.[14]

However, modern scholars have identified problems with all of these claims, and find the term "Celtic Christianity" problematic in and of itself.[1] The idea of a "Celtic Church" is roundly rejected by modern scholars due to the lack of substantiating evidence.[14] Indeed, there were distinct Irish and British church traditions, each with their own practices, and there was significant local variation even within the individual Irish and British spheres.[15] While there were some traditions known to have been common to both the Irish and British churches, these were relatively few. Even these commonalities did not exist due to the "Celticity" of the regions, but due to other historical and geographical factors.[13] Additionally, the Christians of Ireland and Britain were not "anti-Roman"; the authority of Rome and the papacy were venerated as strongly in Celtic areas as they were in any other region of Europe.[16] Caitlin Corning further notes that the "Irish and British were no more pro-women, pro-environment, or even more spiritual than the rest of the Church."[12]

Corning notes that scholars have identified three major strands of thought that have influenced the popular conceptions of Celtic Christianity. The first arose in the English Reformation, when the Church of England declared itself separate from papal authority. Protestant writers of this time popularised the idea of an indigenous British Christianity that opposed the foreign "Roman" church and was purer (and proto-Protestant) in thought. The reformed British and Irish churches, they claimed, were not forming a new institution, but casting off the shackles of Rome and returning to their true roots as the indigenous national churches of Britain.[17] Ideas of Celtic Christianity were further influenced by the Romantic movement of the 18th century, in particular Romantic notions of the noble savage and the intrinsic qualities of the "Celtic race". The Romantics idealised the Celts as a primitive, bucolic people who were far more poetic, spiritual, and freer of rationalism than their neighbours. The Celts were seen as having an inner spiritual nature that shone through even after their form of Christianity had been destroyed by the authoritarian and rational Rome.[18] In the 20th and 21st centuries, these ideas were combined with appeals by certain modern churches and neo-pagan and New Age groups seeking to recover something of ancient spirituality that is felt to be missing from the modern world. For these groups Celtic Christianity becomes a cipher for whatever is lost in the modern religious experience. Corning notes that these notions say more about modern desires than about the reality of Christianity in the Early Middle Ages, however.[19]

History[edit]

Britain[edit]

According to medieval traditions, Christianity arrived in Britain in the 1st or 2nd century. Gildas's 6th-century account dated its arrival to the latter part of the reign of the Roman Emperor Tiberius:[20] an account of the seventy disciples discovered at Mount Athos in 1854 lists Aristobulus as "bishop of Britain".[21] Medieval accounts of King Lucius, SS Fagan and Deruvian, and Joseph of Arimathea, however, are now usually accounted as pious forgeries. The earliest certain historical evidence of Christianity among the native Britons is found in the writings of such early Christian Fathers as Tertullian and Origen in the first years of the 3rd century, although the first Christian communities probably were established at least some decades earlier.

Initially, Christianity was but one of a number of religions: in addition to the native and syncretic local forms of paganism, Roman legionaries and immigrants introduced other cults such as Mithraism. At various times, the Christians risked persecution, although the earliest known Christian martyrs in Britain—SS Alban and "Amphibalus"—probably lived in the early 4th century.[24] SS Aaron and Julius, citizens of Caerleon, were said to have been martyred during the Great Persecution under Diocletian, although there is no textual or archaeological evidence to support the folk etymology of Lichfield as deriving from another thousand martyrs during the same years.[25] Christianisation intensified with the legalisation of the Christian religion under Constantine in the early 4th century and its promotion by subsequent Christian emperors. Three Romano-British bishops, including Archbishop Restitutus of London, are known to have been present at the Council of Arles in 314.[26] Others attended the Council of Sardica in 347 and that of Ariminum in 360. A number of references to the church in Roman Britain are also found in the writings of 4th-century Christian fathers. Britain was the home of Pelagius, who opposed Augustine of Hippo's doctrine of original sin; St Germanus was said to have visited the island in part to oppose the bishops who advocated his heresy.

Around 367, the Great Conspiracy saw the troops along Hadrian's Wall mutiny, allowing and even joining the still-pagan Picts in overrunning the northern areas of Roman Britain in concert with Irish and Saxon attacks on the coast. The Roman provinces seem to have been retaken by Theodosius the Elder the next year, but many Romano-Britons had already been killed or taken as slaves. In 407, Constantine III declared himself emperor of the West and withdrew his legions to Gaul. The Byzantine historian Zosimus (c. 500) stated that Constantine's neglect of the area's defense against Irish and Saxon raids and invasions caused the Britons and Gauls to fully revolt from the Roman Empire, rejecting Roman law and reverting to their native customs.[27] In any case, Roman authority was greatly weakened following the Visigoths' sack of the capital in 410. Medieval legend attributed widespread Saxon immigration to mercenaries hired by the British king Vortigern. The Saxon communities followed a form of Germanic paganism, driving Christian Britons back to Wales, Cornwall, and Brittany or subjugating them under kingdoms with no formal church presence.

5th and 6th-century Britain, although poorly attested, saw the "Age of Saints" among the Welsh.[28] SS Dubric, Illtud, and others first completed the Christianization of Wales. Unwilling or unable to missionize among the Saxons in England, Welsh refugees and missionaries such as SS Patrick[29] and Finnian were then responsible for the Christianization of Ireland[30] and made up the Seven Founder Saints of Brittany.[31] The Irish—most famously, St Columba—then began the conversion of the Dál Riata and the other peoples of Scotland, although native saints such as Mungo also arose. The history of Christianity in Cornwall is more obscure, but the native church seems to have been greatly strengthened by Welsh and Irish missionaries such as SS Petroc, Piran, and Breaca. Extreme weather (as around 535) and the attendant famines and disease, particularly the arrival of the Plague of Justinian in Wales around 547 and Ireland around 548, may have contributed to these missionary efforts.[32]

In addition to such major apostles and martyrs to the Saxons, the title of "saint" was used quite broadly in the Celtic church. Extreme cases are Irish accounts of Gerald of Mayo's presiding over 3300 "saints" and Welsh claims that Bardsey Island held the remains of 20 000.[34] More often, the title was given to the founder of any ecclesiastical settlement, which would thenceforth be known as their llan. Such communities were organized on tribal models: founding saints were almost invariably lesser members of local dynasties, they were not infrequently married, and their successors were often chosen from among their kin.[35][36] In the 6th century, the "Three Saintly Families of Wales"—those of the invading Irish Brychan and Northerners Cunedda and Caw—displaced many of the local Silurian rulers in favor of their own families and clans.[35] By some estimates,[37] these traditions produced over 800 pre-congregational "saints" that were venerated locally in Wales, but invasions by Saxons, Irishmen, Vikings, Normans, and others destroyed many ecclesiastical records. Similarly, the distance from Rome, hostility to native practices and cults, and relative unimportance of the local sees has left only two local Welsh saints in the General Roman Calendar: Saints David and Winifred.

Insular Christianity developed distinct traditions and practices, most pointedly concerning the computus of Easter, as it produced the most obvious signs of disunity:[38] the old and new methods did not usually agree, causing Christians following one system to begin celebrating the feast of the Resurrection while others continued to solemnly observe Lent.[40] Monasticism spread widely; the Llandaff Charters record over fifty religious foundations in southeast Wales alone. Although the clasau were rather modest affairs, great monasteries and monastic schools also developed at Llantwit Major (Llanilltud Fawr), Bangor, and Iona. The Celtic tonsure differed from that elsewhere and also became a point of contention. A distinction that became increasingly important was the continuing tribal nature of Celtic churches: some monasteries were led by married clergy, inheritance of religious offices was common (in Wales, as late as the 12th century),[41] and illegitimacy was treated much more leniently with fathers simply needing to acknowledge the child for him to inherit an equal share with his brothers. Prior to their conquest by England, most Celtic churches have records of bishops and priest but not an established parish system. Pre-conquest, most Christians would not attend regular services but relied on members of the monastic communities who would occasionally make preaching tours through the area.[41]

Wales[edit]

At the end of the 6th century, Pope Gregory I dispatched a mission under St Augustine to convert the Anglo-Saxons, establish new sees and churches throughout their territories, and reässert papal authority over the native church. Gregory intended for Augustine to become the metropolitan bishop over all of southern Britain, including the existing dioceses under Welsh and Cornish control. Augustine met with British bishops in a series of conferences—known as the Synod of Chester—that attempted to assert his authority and to compel them to abandon aspects of their service that had fallen out of line with Roman practice. The Northumbrian cleric Bede's Ecclesiastical History of the English People is the only surviving account of these meetings: according to it, some of the clerics of the nearest British province met Augustine at a site on the border of Kent that was known thereafter as Augustine's Oak. Augustine focused on seeking assistance for his work among the Saxons and reforming the Britons' obsolete method for calculating Easter; the clerics responded that they would need to confer with their people and await a larger assembly.[42] Bede relates that the bishops particularly consulted a hermit on how to respond. He told them to respond based on Augustine's conduct: were he to rise to greet them, they would know him for a humble servant of Christ and should submit to his authority but, were he to remain seated, they would know him to be arrogant and prideful and should reject him. As it happened, Augustine did keep his seat, provoking outrage. In the negotiations that followed, he offered to allow the Britons to maintain all their native customs but three: they should adopt Rome's more advanced method of calculating the date of Easter, reform their baptismal ritual, and join the missionary efforts among the Saxons. The British clerics rejected all of these, as well as Augustine's authority over them.[42] Lloyd argues that the primary reason for the British bishops' rejection of Augustine—and especially his call for them to join his missionary effort—was his claim to sovereignty over them, given that his see would be so deeply entwined with Anglo-Saxon Kent.[43]

The death of hundreds of British clerics to the pagan Northumbrian king Æthelfrith around 616 at the Battle of Chester was taken by Bede as fulfillment of a prophecy allegedly made by Augustine that the British church would receive war and death from the Saxons they refused to proselytise.[44][45][46] Despite the inaccuracies of their system, the Britons did not adopt the Roman and Saxon computus until induced to do around 768 by "Archbishop" Elfodd of "Gwynedd". The Norman invasion of Wales finally brought Welsh dioceses under England's control. The development of legends around the mission of SS Fagan and Deruvian and St Philip's dispatch of Joseph of Arimathea in part aimed to preserve the priority and authority of the native establishments at St Davids, Llandaff, and Glastonbury. It was not until the death of Bishop Bernard (c. 1147) St Davids finally abandoned its claims to metropolitan status and submitted to Canterbury, by which point the popularity of Geoffrey of Monmouth's pseudohistory had begun spreading these inventions further afield. Such ideas were used by mediaeval anti-Roman movements such as the Lollards and followers of John Wyclif,[47] as well as by English Catholics during the Reformation. The legend that Jesus himself visited Britain is referred to in William Blake's 1804 poem "And did those feet in ancient time". The words of Blake's poem were set to music in 1916 by C. Hubert H. Parry, forming the well-known hymn or anthem "Jerusalem".

Scotland[edit]

St Columba at the gate of King Bridei's fortress

According to Bede, Ninian was born about 360, in what is present day Galloway, the son of a chief of a tribe called the Novantae, apparently a Christian. He studied under Martin at Tours, before returning to his own land about 397. He established himself at Whithorn where he built a church of stone, "Candida Casa". Tradition holds that Ninian established an episcopal see at the Candida Casa in Whithorn, and named the see for Saint Martin of Tours. He converted the southern Picts to Christianity,[48] and died around 432. Many Irish saints trained at the "Candida Casa", such as Tighernach, Ciarán of Clonmacnoise, and Finnian of Moville. Ninian's work was carried on by Palladius, who left Ireland to work among the Picts.The mission to the southern Picts apparently met with some setbacks, as Patrick charged Coroticus and the "apostate Picts" with conducting raids on the Irish coast and seizing Christians as slaves. Ternan and Serf followed Palladius. Serf was the teacher of Kentigern,[49] the apostle of Strathclyde, and patron saint of Glasgow.

Cornwall[edit]

A Welshman of noble birth, Petroc was educated in Ireland. He set out in a small boat with a few followers. In a type of peregrinatio, they let God determine their course. The winds and tides brought them to the Padstow estuary.[50] Kevin of Glendalough was a student of Petroc. Endelienta was the daughter of Welsh King Brychan. She also travelled to Cornwall to evangelize the locals. Her brother Nectan worked in Devon. Piran is the patron saint of tin miners. An Irishman, he is said to have floated across to Cornwall after being thrown into the sea tied to a millstone. He has been identified on occasion with Ciaran of Saighir.[51]

Ireland[edit]

St. Patrick

By the early fifth century the religion had spread to Ireland, which had never been part of the Roman Empire. There were Christians in Ireland before Palladius arrived in 431 as the first missionary bishop sent by Rome. His mission does not seem to have been entirely successful. The subsequent mission of Saint Patrick established churches in conjunction with civitates like his own in Armagh; small enclosures in which groups of Christians, often of both sexes and including the married, lived together, served in various roles and ministered to the local population.[52] Patrick set up diocesan structures with a hierarchy of bishops, priests, and deacons. During the late 5th and 6th centuries true monasteries became the most important centres: in Patrick's own see of Armagh the change seems to have happened before the end of the 5th century, thereafter the bishop was the abbot also.[53] Within a few generations of the arrival of the first missionaries the monastic and clerical class of the isle had become fully integrated with the culture of Latin letters. Besides Latin, Irish ecclesiastics developed a written form of Old Irish. Others who influenced the development of Christianity in Ireland include Brigid and Moluag.

Universal practice[edit]

Gaelic and Saxon connections with the greater Latin West brought the nations of Britain and Ireland into closer contact with the orthodoxy of the councils. The customs and traditions particular to Insular Christianity became a matter of dispute, especially the matter of the proper calculation of Easter. Synods were held in Ireland, Gaul, and England (e.g. the Synod of Whitby) but a degree of variation continued in Britain after the Ionan church accepted the Roman date.

The Easter question was settled at various times in different places. The following dates are derived from Haddan and Stubbs: South Ireland, 626-8; North Ireland, 692; Northumbria (converted by Irish missions), 664; East Devon and Somerset, the Britons under Wessex, 705; the Picts, 710; Iona, 716-8; Strathclyde, 721; North Wales, 768; South Wales, 777. Cornwall held out the longest of any, perhaps even, in parts, to the time of Bishop Aedwulf of Crediton (909).[54]

A uniquely Irish penitential system was eventually adopted as a universal practice of the Church by the Fourth Lateran Council of 1215.

Pan-Celtic traditions[edit]

Caitlin Corning identifies four customs that were common to both the Irish and British churches but not used elsewhere in the Christian world.[55]

Easter calculation[edit]

Main articles: Easter controversy and computus

Easter was originally dated according to Hebrew calendar, which tried to place Passover on the first full moon following the Spring equinox but did not always succeed. In his Life of Constantine, Eusebius records that the First Council of Nicaea (325) decided that all Christians should observe a common date for Easter separate from the Jewish calculations, according to the practice of the bishops of Rome and Alexandria.[56] Calculating the proper date of Easter (computus) then became a complicated process involving a lunisolar calendar, finding the first Sunday after an idealized Passover on the first full moon after the equinox.

Various tables were drawn up, aiming to produce the necessary alignment between the solar year and the phases of the calendrical moon. The less exact 8-year cycle was replaced by (or by the time of) Augustalis's treatise "On the measurement of Easter", which includes an 84-year cycle based on Meton. This was introduced to Britain, whose clerics at some point modified it to use the Julian calendar's original equinox on 25 March instead of the Nicaean equinox, which had already drifted to 21 March. This calendar was conserved by the Britons and Irish[57] while the Romans and French began to use the Victorian cycle of 532 years. The Romans (but not the French) then adopted the still-better work of Dionysius in 525, which brought them into harmony with the Church of Alexandria.

As the Celtic-speaking world renewed contact with the continent, it became aware of the divergence. The first clash came in 602 when a synod of French bishops opposed the practices of the monasteries established by St Columbanus; he appealed to the pope but received no answer and finally moved from their jurisdiction. It was a primary concern for St Augustine and his mission, although Oswald's flight to Dál Riata and eventual restoration to his throne meant that Celtic practice was introduced to Northumbria until the 664 synod in Whitby. The groups furthest away from the Gregorian mission were generally the readiest to acknowledge the superiority of the new tables: the bishops of southern Ireland adopted the continental system at the Synod of Mag Léne (c. 630); the c. 697 Council of Birr saw the northern Irish bishops follow suit. The abbey at Iona and its satellites held out until 716,[58] while the Welsh did not adopt the Roman and Saxon computus induced to do around 768 by Elfodd, "archbishop" of Bangor.

Monastic tonsure[edit]

The "Roman" tonsure, in the shape of a crown, differing from the Irish tradition, which is unclear but involved shaving the hair from ear to ear in some fashion

All monks of the period, and apparently most or all clergy, kept a distinct tonsure, or method of cutting one's hair, to distinguish their social identity as men of the cloth. In Ireland men otherwise wore longish hair, and a shaved head was worn by slaves.[59]

The prevailing "Roman" custom was to shave a circle at the top of the head, leaving a halo of hair or corona; this was eventually associated with the imagery of Christ's Crown of Thorns.[60] The early material referring to the Celtic tonsure emphasises its distinctiveness from the Roman alternative and invariably connects its use to the Celtic dating of Easter.[61] Those preferring the Roman tonsure considered the Celtic custom extremely unorthodox, and associated it with the form of tonsure worn by the heresiarch Simon Magus.[62] This association appears in a 672 letter from Saint Aldhelm to King Geraint of Dumnonia, but it may have been circulating since the Synod of Whitby.[63] The tonsure is also mentioned in a passage, probably of the 7th century but attributed wrongly to Gildas: "Britones toti mundo contrarii, moribus Romanis inimici, non solum in missa sed in tonsura etiam" ("Britons are contrary to the whole world, enemies of Roman customs, not only in the Mass but also in regard to the tonsure").[64]

The exact shape of the Irish tonsure is unclear from the early sources, although they agree that the hair was in some way shorn over the head from ear to ear.[65] In 1639 James Ussher suggested a semi-circular shape, rounded in the front and culminating at a line between the ears.[66] This suggestion was accepted by many subsequent writers, but in 1703, Jean Mabillon put forth a new hypothesis, claiming that the entire forehead was shaven back to the ears. Mabillon's version was widely accepted, but contradicts the early sources.[67] In 2003 Daniel McCarthy suggested a triangular shape, with one side between the ears and a vertex towards the front of the head.[65] The Collectio canonum Hibernensis cites the authority of Saint Patrick as indicating that the custom originated with the swineherd of Lóegaire mac Néill, the king who opposed Patrick.[68]

Penitentials[edit]

Main article: Penitential

In Ireland a distinctive form of penance developed, where confession was made privately to a priest, under the seal of secrecy, and where penance was given privately and ordinarily performed privately as well.[69] Certain handbooks were made, called "penitentials", designed as a guide for confessors and as a means of regularising the penance given for each particular sin.

In antiquity, penance had been a public ritual. Penitents were divided into a separate part of the church during liturgical worship, and they came to mass wearing sackcloth and ashes in a process known as exomologesis that often involved some form of general confession.[70] There is evidence that this public penance was preceded by a private confession to a bishop or priest (sacerdos), and it seems that, for some sins, private penance was allowed instead.[71] Nonetheless, penance and reconciliation was prevailingly a public rite (sometimes unrepeatable), which included absolution at its conclusion.[72]

The Irish penitential practice spread throughout the continent, where the form of public penance had fallen into disuse. Saint Columbanus was credited with introducing the medicamenta paentitentiae, the "medicines of penance", to Gaul at a time when they had come to be neglected.[73] Though the process met some resistance, by 1215 the practice had become established as the norm, with the Fourth Lateran Council establishing a canonical statute requiring confession at a minimum of once per year.

Peregrinatio[edit]

A final distinctive tradition common across Britain and Ireland was the popularity of peregrinatio pro Christo ("exile for Christ"). The term peregrinatio is Latin, and referred to the state of living or sojourning away from one's homeland in Roman law. It was later used by the Church Fathers, in particular Saint Augustine of Hippo, who wrote that Christians should live a life of peregrinatio in the material world while awaiting the Kingdom of God. Augustine's version of peregrinatio spread widely throughout the Christian church, but it took two additional unique meanings in Celtic countries.[74]

In the first sense, the Celtic penitentials prescribed permanent or temporary peregrinatio as penance for certain infractions. Additionally, there was a tradition of undertaking a voluntary peregrinatio pro Christo, in which individuals permanently left their homes and put themselves entirely in God's hands. In the Irish tradition there were two types of such peregrinatio, the "lesser" peregrinatio, involving leaving one's home area but not the island, and the "superior" peregrinatio, which meant leaving Ireland for good. This voluntary exile to spend one's life in a foreign land far from friends and family came to be termed the "white martyrdom".[75]

Most peregrini or exiles of this type were seeking personal spiritual fulfilment, but many became involved in missionary endeavours. The Briton Saint Patrick became the evangelist of Ireland during what he called his peregrinatio there, while Saint Samson left his home to ultimately become bishop in Brittany. The Irishmen Columba and Columbanus similarly founded highly important religious communities after leaving their homes.[74]

Other Irish and British traditions[edit]

A number of other distinctive traditions and practices existed (or are taken to have existed) in Britain or Ireland, but are not known to have been in use across the entire Celtic-speaking region. Different writers and commenters have identified different traditions as representative of Celtic Christianity.[76]

Monasticism[edit]

Excerpt from the Martyrology of Oengus

Monastic spirituality came to Britain and then Ireland from Gaul, by way of Lérins, Tours, and Auxerre. Its spirituality was heavily influenced by the Desert Fathers. According to Richard Woods, the familial, democratic, and decentralized aspects of Egyptian Christianity were better suited to structures and values of Celtic culture than was a legalistic diocesan form.[75]

Monasteries tended to be cenobitical in that monks lived in separate cells but came together for common prayer, meals, and other functions. Some more austere ascetics became hermits living in remote locations in what came to be called the "green martyrdom".[75] An example of this would be Kevin of Glendalough and Cuthbert of Lindisfarne.

The claim is made that the true ecclesiastical power in the Celtic world lay in the hands of abbots of monasteries, rather than the bishops of dioceses.[12][77] It is certain that the ideal of monasticism was universally esteemed in Celtic Christianity.[78] This was especially true in Ireland and areas evangelised by Irish missionaries, where monasteries and their abbots came to be vested with a great deal of ecclesiastical and secular power. Following the growth of the monastic movement in the 6th century, abbots controlled not only individual monasteries, but also expansive estates and the secular communities that tended them.[79] As monastics, abbots were not necessarily ordained (i.e. they were not necessarily priests or bishops). They were usually descended from one of the many Irish royal families, and the founding regulations of the abbey sometimes specified that the abbacy should if possible be kept within one family lineage.[80]

This focus on the monastery has led some scholars, most notably Kathleen Hughes, to argue that the monastic system came to be the dominant ecclesiastical structure in the Irish church, essentially replacing the earlier episcopal structure of the type found in most of the rest of the Christian world.[81] Hughes argued that the paruchia, or network of monasteries attached to an abbey, replaced the diocese as the chief administrative unit of the church, and the position of abbot largely replaced that of bishop in authority and prominence.[82] According to this model, bishops were still needed, since certain sacramental functions were reserved only for the ordained, but they had little authority in the ecclesiastical structure.[83]

However, more recent scholarship, particularly the work of Donnchadh Ó Corráin and Richard Sharpe, has offered a more nuanced view of the interrelationships between the monastic system and the traditional church structures.[81] Sharpe argues that there is no evidence that the paruchia overrode the diocese, or that the abbot replaced the bishop;[78] bishops still exercised ultimate spiritual authority and remained in charge of the diocesan clergy.[81] But either way, the monastic ideal was regarded as the utmost expression of the Christian life.[78]

The focus on powerful abbots and monasteries was limited to the Irish church, however; it was not universal across the Celtic world. The British church employed an episcopal structure corresponding closely to the model used elsewhere in the Christian world.[12][77]

Irish monasticism was notable for its permeability. In permeable monasticism, people were able to move freely in and out of the monastic system at different points of life. Young boys and girls would enter the system to pursue Latin scholarship. Students would sometimes travel from faraway lands to enter the Irish monasteries. When these students became adults, they would leave the monastery to live out their lives. Eventually, these people would retire back to secure community provided by the monastery and stay until their death. However, some would stay within the monastery and become leaders. Since most of the clergy were Irish, native traditions were well-respected. Permeable monasticism popularised the use of vernacular and helped mesh the norms of secular and monastic element in Ireland, unlike other parts of Europe where monasteries were more isolated. Examples of these intertwining motifs can be seen in the hagiographies of St. Brigid and St. Columba.[84]

This willingness to learn, and also to teach, was a hallmark of the "permeable monasticism" that so characterised the Irish monastery. While a hermitage was still the highest form of dedication, the monasteries were very open to allowing students and children within the walls for an education, without requiring them to become monks. These students were then allowed to leave and live within the community, and were welcomed back in their old age to retire in peace. This style of monasticism allowed for the monastery to connect with, and become a part of, the community at large. The availability of the monks to the people was instrumental in converting Ireland from paganism to Christianity, allowing a blend of the two cultures.[84]

In Wales[edit]

Main article: clasau

According to hagiographies written some centuries later, Illtud and his pupils David, Gildas, and Deiniol were leading figures in 6th-century Britain. Illtud founded the monastery at Llantwit Major (Llanilltud Fawr). The monastery stressed learning as well as devotion. One of his fellow students was Paul Aurelian, a key figure in Cornish monasticism.[85]

St. Illtyd, said to have been an Armorican by descent, founded the monastery at Llanilltyd Fawr. One of the most notable pupils of Illtyd was St. Samson of Dol, who lived for a time the life of a hermit in a cave near the river Severn before founding a monastery in Brittany. Not far Llantwit Fawr stood St Cadoc's foundation of Llancarfan. His legend recounts that he daily fed a hundred clergy and a hundred soldiers, a hundred workmen, a hundred poor men, and the same number of widows. When thousands left the world and became monks, they very often did so as clansmen, dutifully following the example of their chief. Bishoprics, canonries, and parochial benefices passed from one to another member of the same family, and frequently from father to son. Their tribal character is a feature which Irish and Welsh monasteries had in common.[36]

St David established his monastery on a promontory on the western sea. It was well placed to be a centre of Insular Christianity. When King Alfred sought a scholar for his court, he summoned Asser of St David's. Contemporary with David were Teilo, Cadoc, Padarn, Beuno and Tysilio among them. It was from Illtud and his successors that the Irish sought guidance on matters of ritual and discipline. Finnian of Clonard studied under Cadoc at Llancarfan in Glamorganshire.

In Ireland[edit]

Finnian of Clonard is said to have trained the Twelve Apostles of Ireland at Clonard Abbey.

Saint John, evangelist portrait from the Book of Mulling, Irish, late 8th century

The achievements of insular art, in illuminated manuscripts like the Book of Kells, high crosses, and metalwork like the Ardagh Chalice remain very well known, and in the case of manuscript decoration had a profound influence on Western medieval art.[86] The manuscripts were certainly produced by and for monasteries, and the evidence suggests that metalwork was produced in both monastic and royal workshops, perhaps as well as secular commercial ones.[87]

In the sixth and seventh centuries, Irish monks established monastic institutions in parts of modern-day Scotland (especially Columba, also known as Colmcille or, in Old Irish, Colum Cille), and on the continent, particularly in Gaul (especially Columbanus). Monks from Iona under St. Aidan founded the See of Lindisfarne in Anglo-Saxon Northumbria in 635, whence Gaelic-Irish practice heavily influenced northern England.

Irish monks also founded monasteries across the continent, exerting influence greater than many more ancient continental centres.[88] The first issuance of a papal privilege granting a monastery freedom from episcopal oversight was that of Pope Honorius I to Bobbio Abbey, one of Columbanus's institutions.[89]

At least in Ireland, the monastic system became increasingly secularised from the 8th century, as close ties between ruling families and monasteries became apparent. The major monasteries were now wealthy in land and had political importance. On occasion they made war either upon each other or took part in secular wars – a battle in 764 is supposed to have killed 200 from Durrow Abbey when they were defeated by Clonmacnoise.[90] From early periods the kin nature of many monasteries had meant that some married men were part of the community, supplying labour and with some rights, including in the election of abbots (but obliged to abstain from sex during fasting periods). Some abbacies passed from father to son, and then even grandsons.[91] A revival of the ascetic tradition came in the second half of the century, with the culdee or "clients (vassals) of God" movement founding new monasteries detached from family groupings.[92]

Rule of Columbanus[edit]

The monasteries of the Irish missions, and many at home, adopted the Rule of Saint Columbanus, which was stricter than the Rule of Saint Benedict, the main alternative in the West. In particular there was more fasting and an emphasis on corporal punishment. For some generations monks trained by Irish missionaries continued to use the Rule and to found new monasteries using it, but most converted to the Benedictine Rule over the 8th and 9th centuries.[93]

Again, however, the Rule of Columbanus was used exclusively in monasteries in the Irish sphere of influence; it was not followed in British monasteries.

Baptism[edit]

Bede implies that in the time of Augustine of Canterbury, British churches used a baptismal rite that was in some way at variance with the Roman practice. According to Bede, the British Christians' failure to "complete" the sacrament of Baptism was one of the three specific issues with British practice that Augustine could not overlook.[94] There is no indication as to how the baptism was "incomplete" according to the Roman custom. It may be that there was some difference in the confirmation rite, or that there was no confirmation at all.[43] At any rate, it is unlikely to have caused as much discord as the Easter controversy or the tonsure, as no other source mentions it.[43] As such there is no evidence that heterodox baptism figured into the practice of the Irish church.[12][77]

Celtic Christian revivalism[edit]

Ian Bradley notes that the recurrent interest in Celtic Christianity has led to successive revival movements he terms "Celtic Christian revivalism". According to Bradley, most, though not all, revivalists are non-Celts for whom Celtic Christianity has an "exotic and peripheral" appeal.[95] Adherents typically claim their revivals restore authentic practices and traits of Celtic Christianity, though Bradley notes they reflect contemporary concerns and prejudices much more closely, and most are "at least partially inspired and driven by denominational and national rivalries, ecclesiastical and secular power politics, and an anti-Roman Catholic agenda." Though often inaccurate or distorted, the beliefs of these movements have greatly influenced popular conceptions of historical Celtic Christianity.[96]

Bradley traces the origins of Celtic Christian revivalism to the Middle Ages. In the 8th and 9th century, authors wrote idealised hagiographies of earlier Celtic saints, whose "golden age" of extraordinary holiness contrasted with the perceived corruption of later times. Similarly, the 12th- and 13th-century literary revival popularised and romanticised older Celtic traditions such as the Arthurian legend. These ideas were expanded during the English Reformation, as Protestant authors appropriated the concept of a "Celtic Church" as a native, anti-Roman predecessor to their own movement.[97]

In the 18th and 19th centuries, antiquarianism, the Romantic movement, and growing nationalism influenced ideas about what was becoming known as "Celtic Christianity". Beginning in the early 20th century, a full-fledged revival movement began, centred on the island of Iona and influenced by the Irish literary revival and more general Christian revivals. By the end of the 20th century, another wave of enthusiasm began, this time influenced by New Age ideals.[97] Today, a self-identification with and use of "Celtic Christianity" is widespread in countries such as Ireland, both among participants in established churches and independent groups.[98]

See also[edit]

References[edit]

  1. ^ a b Koch, p. 431.
  2. ^ Koch, pp. 431–432.
  3. ^ a b Corning, p. 18.
  4. ^ Dáibhí Ó Cróinín, Early Medieval Ireland 400–1200 (London, 1995); T. M. Charles-Edwards, Early Christians Ireland (Cambridge, 2000); W. Davies, "The Myth of the Celtic Church", in N. Edwards and A. Lane, The Early Church in Wales and the West (Oxbow Monograph 16, Oxford, 1992), pp. 12–21; Kathleen Hughes, "The Celtic Church: is this a valid concept?", in Cambridge Medieval Celtic Studies 1 (1981), pp. 1–20; Kathleen Hughes, The Church in Early English Society (London, 1966); W. Davies and P. Wormald, The Celtic Church (Audio Learning Tapes, 1980).
  5. ^ Peter Brown, The Rise of Western Christendom, 2nd edition (Oxford, Blackwell Publishing, 2003), pp. 16, 51, 129, 132.
  6. ^ Patrick Wormald, "Bede and the 'Church of the English'", in The Times of Bede, ed. Stephen Baxter (Oxford: Blackwell, 2006), p. 207.
  7. ^ Padberg, Lutz von (1998). Die Christianisierung Europas im Mittelalter. Reclam. ISBN 9783150170151. 
  8. ^ Richard Sharpe, "Some problems concerning the organization of the Church in early medieval Ireland", Peritia 3 (1984), pp. 230–270; Patrick Wormald, "Bede and the 'Church of the English'", in The Times of Bede, ed. Stephen Baxter (Oxford: Blackwell Publishing, 2006), pp. 207–208, 220 n. 3
  9. ^ Patrick Wormald, "Bede and the 'Church of the English'", in The Times of Bede, ed. Stephen Baxter (Oxford: Blackwell Publishing, 2006), pp. 223–224 n. 1
  10. ^ Corning, p. xii.
  11. ^ Bradley, p. vii–ix.
  12. ^ a b c d e f Corning, p. 1.
  13. ^ a b Koch, p. 432.
  14. ^ a b Koch, p. 432–434.
  15. ^ Corning, p. 4.
  16. ^ Corning, p. 1; 4.
  17. ^ Corning, p. 2.
  18. ^ Corning, p. 2–3.
  19. ^ Corning, p. 3.
  20. ^ Gildas. De Excidio et Conquestu Britanniae. 6th century. (Latin) Translated by Thomas Habington. The Epistle of Gildas the most ancient British Author: who flourished in the yeere of our Lord, 546. And who by his great erudition, sanctitie, and wisdome, acquired the name of Sapiens. Faithfully translated out of the originall Latine (8 vols). T. Cotes for William Cooke (London), 1638. Edited and reprinted by John Allen Giles. "The Works of Gildas, Surnamed 'Sapiens,' or the Wise", §8 in Six Old English Chronicles of Which Two Are Now First Translated from the Monkish Latin Originals: Ethelwerd's Chronicle, Asser's Life of Alfred, Geoffrey of Monmouth's British History, Gildas, Nennius, and Richard of Cirencester. Henry G. Bohn (London), 1848. Hosted at Wikisource.
  21. ^ Pseudo-Hippolytus. "On the Seventy Apostles of Christ". Translated in Ante-Nicean Fathers, Vol. 5, pp. 254–256. Hendrickson Publishers (Peabody), 1999.
  22. ^ "St. Alban the Martyr", Orthodoxy's Western Heritage .
  23. ^ Anglo-Saxon Chronicles, Project Gutenburg 
  24. ^ The date of Alban's execution has been a subject of discussion among historians with John Morris proposing that it took place during the persecutions of Emperor Septimius Severus as early as 209.[22] The Anglo-Saxon Chronicle lists the year 283,[23] and Bede places it in 305. Still others argue that sometime during the persecutors Decius or Valerian (251-259) is more likely.
  25. ^ "Explaining the origin of the 'field of the dead' legend". British History Online. Retrieved 20 November 2008. 
  26. ^ Williams, Rowan. "1400th anniversary of the re-organisation of the Diocese of London", Archbishop of Canterbury
  27. ^ Snyder, Christopher A. (1998). An Age of Tyrants: Britain and the Britons A.D. 400–600. University Park: Pennsylvania State University Press. p. 22. ISBN 0-271-01780-5. 
  28. ^ Thomas, Jeffrey L. "The Age of Saints". The Castles of Wales, 2009. Accessed 6 February 2015.
  29. ^ Note, however, that many events of Patrick's hagiographies may have originally intended the earlier St Palladius, a Gaul dispatched to Ireland by Pope Celestine I.
  30. ^ Baring-Gould (1898), p. 41.
  31. ^ Baring-Gould (1898), p. 26.
  32. ^ Hughes 2005, 310–311
  33. ^ Quoted translated from the Latin in Baring-Gould (1898), p. 39.
  34. ^ The Bollandists compiling the Acta Sanctorum were even driven to complain of the Irish "canonising dead men in troops whenever they seemed to be somewhat better than usual".[33]
  35. ^ a b Baring-Gould, Sabine. The Lives of the Saints, Vol. XVI, "The Celtic Church and its Saints", pp. 30–40. Longmans, Green, & Co. (New York), 1898.
  36. ^ a b Newell, E.J. A History of the Welsh Church to the Dissolution of the Monasteries, Ch. III. Elliot Stock (London), 1895.
  37. ^ Rowan Williams, Reviews and comments on 'The Book of Welsh Saints'.
  38. ^ Lloyd, pp. 175–177.
  39. ^ Lloyd, p. 176 and note.
  40. ^ Indeed, this is noted as occurring in the household of King Oswiu of Northumbria, whose kingdom had been evangelised by both Irish and Roman missionaries.[39]
  41. ^ a b "Early Christianity in Wales", Powys Digital History Project
  42. ^ a b Lloyd, pp. 174–175.
  43. ^ a b c Lloyd, p. 177.
  44. ^ Lloyd, p. 180.
  45. ^ Yorke, pp. 118–119
  46. ^ Bede, Ecclesiastical History of England, London: George Bell and Sons, 1907; Bede says 1,200 British clergy died; the Anglo-Saxon Chronicle says 200. Bede is unclear on the date of the battle, but the current view is that it occurred in 616.
  47. ^ Tuchman, B. (1978) A Distant Mirror Ballantine Books, New York. ISBN 0-345-34957-1
  48. ^ "Saint Ninian" The Whithorn Trust
  49. ^ Butler, Alban. "The Lives of the Saints", Vol.VII, 1866
  50. ^ "The Story of St. Petroc", St. Petroc's, Padstow
  51. ^ "Saint Ciaran of Saigir", New Schaff-Herzog Encyclopedia of Religious Knowledge, p.117
  52. ^ Hughes 2005, 306 & 310; Riley, 82–93, 95–96
  53. ^ Ryan, 100–102
  54. ^ A. W. Haddan and W. Stubbs (ed.), Councils and Ecclesiastical Documents Relating to Great Britain and Ireland, 3 vols (Oxford, 1869–78), I, 112-3, Quoted in "The Catholic Encyclopedia".
  55. ^ Corning, pp. 1–19.
  56. ^ Constantine (325), "Letter on the Keeping of Easter to those not present at Nicaea", in Eusebius of Caesaria, The Life of Constantine III (published 1996), §18–20, ISBN 1-56085-072-8 
  57. ^ Patrick Wormald, Bede and the Church of the English, in The Times of Bede, ed. Stephen Baxter (Oxford, Blackwell Publishing, 2006), p. 224 n. 1.
  58. ^ Eric John, The Social and Political Problems of the Early English Church, in Anglo-Saxon History: Basic Readings, ed. David A. E. Pelteret (New York & London: Garland Publishing, 2000), p. 34
  59. ^ Ryan, p. 217.
  60. ^ McCarthy, p. 146.
  61. ^ McCarthy, p. 140.
  62. ^ McCarthy, pp. 141–143.
  63. ^ McCarthy, p. 141.
  64. ^ A. W. Haddan and W. Stubbs (ed.), Councils and Ecclesiastical Documents Relating to Great Britain and Ireland, 3 vols (Oxford, 1869–78), I, 112-3
  65. ^ a b McCarthy, Daniel (2003). "On the Shape of the Insular Tonsure" (PDF). Celtica 24: 140–167. Retrieved 18 June 2009. 
  66. ^ McCarthy, pp. 147–148
  67. ^ McCarthy, p. 149.
  68. ^ McCarthy, pp. 142–143
  69. ^ Medieval Handbooks of Penance, eds. John T. McNeil and Helena M. Gamer (New York, Columba University Press, 1938), p. 28
  70. ^ Medieval Handbooks of Penance, eds. John T. McNeil and Helena M. Gamer (New York, Columba University Press, 1938), pp. 7–9
  71. ^ Medieval Handbooks of Penance, eds. John T. McNeil and Helena M. Gamer (New York, Columba University Press, 1938), pp. 9–12.
  72. ^ Medieval Handbooks of Penance, eds. John T. McNeil and Helena M. Gamer (New York, Columba University Press, 1938), pp. 13–17.
  73. ^ Peter Brown, The Rise of Western Christendom, 2nd edition (Oxford: Blackwell Publishing, 2003), p. 252
  74. ^ a b Corning, p. 17.
  75. ^ a b c Woods, Richard. "The Spirituality of the Celtic Church", Spirituality Today, Fall 1985, Vol. 37 No. 3, pp. 243–255
  76. ^ This list includes information from Charles Plummer's essay, "Excursus on the Paschal Controversy and Tonsure" in his edition Venerablilis Baedae, Historiam Ecclesiasticam Gentis Anglorum, 1892 (Oxford: University Press, 1975), pp. 348–354.
  77. ^ a b c Koch, p. 433.
  78. ^ a b c Herren & Brown, p. 13.
  79. ^ Hughes 2005, 311–312.
  80. ^ Ó Cróinín, Dáibhí in Youngs, pp. 13–14
  81. ^ a b c Hughes 2005, 311 and note.
  82. ^ Hughes 2005, 312.
  83. ^ Eric John, 'The Social and Political Problems of the Early English Church', in Anglo-Saxon History: Basic Readings, ed. David A. E. Pelteret (New York & London: Garland Publishing, 2000), pp. 32–34.
  84. ^ a b de Paor, Máire and Liam (1958). Early Christian Ireland: Ancient Peoples and Places. Frederick A. Praeger. 
  85. ^ Thurston, Herbert. "Welsh Church." The Catholic Encyclopedia. Vol. 15. New York: Robert Appleton Company, 1912. 19 Nov. 2013
  86. ^ Nordenfalk[page needed]; Pächt[page needed]
  87. ^ Youngs, 15–16, 125
  88. ^ Eric John, The Social and Political Problems of the Early English Church, in Anglo-Saxon History: Basic Readings, ed. David A. E. Pelteret (New York & London: Garland Publishing, 2000), p. 36.
  89. ^ Eric John, 'The Social and Political Problems of the Early English Church', in Anglo-Saxon History: Basic Readings, ed. David A. E. Pelteret (New York & London: Garland Publishing, 2000), p. 37.
  90. ^ Hughes 2005: 317
  91. ^ Hughes 2005:, 313, 316, 319
  92. ^ Hughes 2005: 319–320
  93. ^ The main source for Columbanus's life or vita is recorded by Jonas of Bobbio, an Italian monk who entered the monastery in Bobbio in 618, three years after the saint's death; Jonas wrote the life c. 643. This author lived during the abbacy of Attala, Columbanus's immediate successor, and his informants had been companions of the saint. Mabillon in the second volume of his "Acta Sanctorum O.S.B." gives the life in full, together with an appendix on the miracles of the saint, written by an anonymous member of the Bobbio community.
  94. ^ Lloyd, p. 175.
  95. ^ Bradley, pp. viii–ix.
  96. ^ Bradley, p. ix.
  97. ^ a b Bradley, p. viii.
  98. ^ Gierek, Bozena, "Celtic spirituality in contemporary Ireland". 300 – 317 in Olivia Cosgrove et al. (eds), Ireland's new religious movements. Cambridge Scholars, 2011

Bibliography[edit]

Primary sources[edit]

  • Adomnan, Life of Columba, ed. A. O. and M. O. Anderson, 2nd edition (Oxford Medieval Texts, 1991)
  • Annales Cambriae, ed. Rev. John Williams ab Ithel (London : Longman, Green, Longman and Roberts, 1860)
  • Bede, Historia Ecclesiastica Gentis Angelorum, in Venerabilis Baedae Opera Historica, ed. C. Plummer (Oxford, 1896)
  • Cummian, De controversia paschali and De ratione conputandi, eds. Maura Walsh and Dáibhí Ó Cróinín (Toronto: Pontifical Institute of Mediaeval Studies, 1988), pp. 93–5.
  • Gildas, De Excidio Brittaniae, ed. J. A. Giles, Six Old English Chronicles (London, 1848)
  • Historia Brittonum, ed. J. A. Giles, Six Old English Chronicles (London, 1848)
  • Medieval Handbooks of Penance, eds. J. T. McNeill and H. M. Gamer (New York: Columba University Press, 1939)
  • Patrick (Saint), Confessio, ed. and trans. John Skinner (Image, 1998)
  • Baring-Gould, S. (Sabine), The Lives of the British Saints,(1907) scanned by Google (alphabetized)

Secondary sources[edit]

  • Bradley, Ian (1999). Celtic Christianity: Making Myths and Chasing Dreams. Edinburgh University Press. ISBN 0-7486-1047-2. Retrieved 9 May 2013. 
  • Brown, Peter. The Rise of Western Christendom: Triumph and Diversity, 2nd ed. (Oxford: Blackwell Publishing, 2003).
  • Cahill, Thomas. How the Irish Saved Civilization (Anchor, 1996). ISBN 0-385-41849-3
  • Charles-Edwards. T. M. Early Christian Ireland (Cambridge, 2000).
  • Corning, Caitlin (2006). The Celtic and Roman Traditions: Conflict and Consensus in the Early Medieval Church. Macmillan. ISBN 1-4039-7299-0. 
  • Cróinín, Dáibhí Ó. Early Medieval Ireland: 400–1200 (London, 1995).
  • Davies, Wendy. "The Myth of the Celtic Church", in The Early Church in Wales and the West, Oxbow Monograph, no. 16, edited by Nancy Edwards and Alan Lane, 12–21. (Oxford: Oxbow, 1992).
  • Herren, Michael W.; Brown, Shirley Ann (2002). Christ in Celtic Christianity. Boydell Press. ISBN 0-85115-889-7. 
  • Hughes, Kathleen (1981). The Celtic Church: Is This a Valid Concept? O'Donnell lectures in Celtic Studies, University of Oxford 1975. Cambridge Medieval Celtic Studies 1. pp. 1–20. 
  • Hughes, Kathleen (1966). The Church in Early Irish Society. London. ISBN 1-59740-067-X. 
  • Hughes, Kathleen (2005). "The Church in Early Irish Society: 400–800". In Ó Cróinín, Dáibhí. A New History of Ireland: Prehistoric and Early Ireland. Oxford University Press. ISBN 978-0-19-922665-8.  Google Books link 2
  • Koch, John T. (2006). Celtic Culture: A Historical Encyclopedia. ABC-CLIO. 
  • Lloyd, John Edward (1912). A History of Wales from the Earliest Times to the Edwardian Conquest. Longmans, Green, and Co. Retrieved 17 May 2010. 
  • McCarthy, Daniel (2003). "On the Shape of the Insular Tonsure" (PDF). Celtica 24: 140–167. Retrieved 18 June 2009. 
  • Nordenfalk, Carl. Celtic and Anglo-Saxon Painting: Book illumination in the British Isles 600–800. New York: George Braziller, 1977.
  • Pächt, Otto. Book Illumination in the Middle Ages (trans fr German), 1986, Harvey Miller Publishers, London, ISBN 0-19-921060-8
  • Ryan, John. Irish Monasticism, Origins and Early Development, Talbot Press, Dublin, 1931
  • Sharpe, Richard. 'Some problems concerning the organisation of the Church in early medieval Ireland', Peritia 3 (1984).
  • Wormald, Patrick. The Times of Bede: Studies in Early English Christian Society and its Historian, ed. Stephen Baxter (Oxford: Blackwell Publishing, 2006).
  • Yorke, Barbara (2006). The Conversion of Britain: Religion, Politics and Society in Britain c. 600–800. London: Pearson/Longman. ISBN 0-582-77292-3. 
  • Youngs, Susan, ed. (1989). 'The Work of Angels', Masterpieces of Celtic Metalwork, 6th–9th centuries AD. London: British Museum Press. ISBN 0-7141-0554-6. 

Further reading[edit]

  • Cahill, Thomas (1996). How the Irish Saved Civilization. Anchor Books. ISBN 0-385-41849-3. 
  • Corning, Caitlin (2006). The Celtic and Roman Traditions: Conflict and Consensus in the Early Medieval Church. Palgrave Macmillan. ISBN 1-4039-7299-0. 
  • Mayr-Harting, Henry. The Coming of Christianity to Anglo-Saxon England, 3rd edition (London: B. T. Batsford Ltd, 1991).