Synod of Ráth Breasail
The Synod of Ráth Breasail (also known as Rathbreasail) (Irish: Sionad Ráth Bhreasail) took place in Ireland in 1118. It marked the transition of the Irish church from a monastic to a diocesan and parish-based church. Many Irish present day dioceses trace their boundaries to decisions made at the synod.
The synod was attended by no fewer than fifty bishops, three hundred priests and over three thousand laymen. It established two provinces: Armagh and Cashel. Each province consisted of twelve territorial dioceses. The boundaries of the dioceses were only vaguely defined, however. The synod also made the See of Waterford a suffragan of the Archbishop of Cashel having previously been a Danish city subject to Canterbury.
It was the second of four great reforming Irish synods, the other three were at Cashel (1111), Kells-Mellifont (1152) and Cashel again (1172). Rathbreasail is near Mountrath, County Laois, a suitably central place for such an important meeting, however the location of the Synod is not certain and sites in counties Armagh, Laois, Tipperary and Cork have been mooted possible locations. Ó Murchada (1999) argues in favour of a location near the townland of Clonbrassil about 4 miles south-west of Templemore, Co. Tipperary in the present-day parish of Drom & Inch.
The following 24 dioceses were established by the synod:
- Ardagh: East Connacht
- Ardstraw: Cehel Tír Eogain (except Inis Eogain)
- Clogher: Approximating to Kingdom of Uí Chremthainn
- Clonard: West Meath †
- Clonfert: Territory of the Uí Maine
- Connor: Territory of Dalriada
- Cong was named as one of the five dioceses for Connacht, but no names of bishops have been recorded.
- Down: Territory of Ulidia
- Duleek: East Meath - At the Synod of Uisneach, convened by the abbot of Clonmacnoise later in 1111, the See of Duleek was suppressed. West Meath assigned to a new Diocese of Clonmacnoise and East Meath to Clonard. It appears, however, that a number of Bishops of Duleek were appointed before 1160.
- Elphin: East Connacht
- Ferns or Loch Garman (Wexford Haven)
- Kilkenny (subsequently renamed Ossory): Territory of Osraige
- Killala: Territory of the Uí Fiachrach
- Killaloe: Territory of Uí Fiachrach Aidhne
- Leighlin: One of five dioceses for Leinster
- Raphoe: Tír Conaill and Inis Eogain
- Ratass: Territories of the Ciarraighe, Corco Duibne and Eóganacht Locha Léin (moved to Ardfert by 1117)
- Tuam: One of five dioceses in Connacht
- Diocese of Waterford: already in existence, but had been subject to the Archdiocese of Canterbury prior to 1111
The Diocese of Dublin acknowledged the jurisdiction of Canterbury until 1096, but was not included in the list of dioceses at the synod. It was not incorporated into the system of Irish dioceses until the Synod of Kells in 1152.
- Peter Galloway, The Cathedrals of Ireland, Belfast 1992
- Geoffrey Keating. Foras Feasa Book I-II Geoffrey Keating. http://www.ucc.ie/celt/published/G100054/text089.html The History of Ireland http://www.ucc.ie/celt/published/T100054/text090.html
- MacErlean, John (1914) Synod of Raith Breasail: Boundaries of the Dioceses of Ireland [A.D. 1110 or 1118]. Archivium Hibernicum, Vol. 3 (1914), pp. 1–33
- Fleming J., "Gille of Limerick, architect of a medieval church" Four Courts Press, Dublin 2001.
- Ó Murchada (1999) "Where was Ráith Breasail?" in Tipperary Historical Journal