A feudal baron is a vassal holding a heritable fief called a barony, comprising a specific portion of land, granted by an overlord in return for allegiance and service. Following the end of European feudalism, feudal baronies have largely been superseded by baronies held as a rank of nobility, without any attachment to a fief. However, in Scotland, the feudal dignity of baron remains in existence, and may be bought and sold independently of the land to which it was formerly attached.
Historically, the feudal barons of England were the king's tenants-in-chief, that is to say men who held land by feudal tenure directly from the king as their sole overlord and were granted by him a legal jurisdiction (court baron) over their territory, the barony, comprising several manors. Such men, if not already noblemen,[a] were ennobled by obtaining such tenure, and had thenceforth an obligation, upon summons by writ, to attend the king's peripatetic court, the earliest form of Parliament and the House of Lords. They thus formed the baronage, which later formed a large part of the peerage of England.
English feudal baronies (and all lesser forms of feudal tenure) were abolished by the Tenures Abolition Act 1660, but the titles/dignities remain. However, long before then the royal summons to attend parliament had been withheld from all but the most powerful feudal barons and had been extended to persons with lesser feudal tenures who had personal qualities fitting them to be royal councillors and thus peers. These latter were barons by writ.
The English feudal barony, or "barony by tenure", now has no legal existence except as an incorporeal hereditament title or dignity. It was the highest form of feudal land tenure, namely per baroniam (Latin for "by barony") under which the land-holder owed the now little understood service of "being one of the king's barons". It must be distinguished from the lesser barony, also feudal, which existed within a county palatine, such as the barony of Halton within the Palatinate of Chester.[b] Such barons were merely tenants-in-chief of a prince, whose own overlord was the king. The duties and privileges owed by feudal barons cannot now be defined exactly but the main duty certainly was the provision of soldiers to the royal feudal army on demand by the king, and a further duty, which involved considerable expense and travel, clearly also a privilege, was the attendance at the king's feudal court, the precursor of Parliament. The principal benefit clearly was the revenue generated from rents and production within the demesne lands of the barony, and also the personal power and prestige derived from the feudal service of the tenants, the highest level of whom, lords of their own manors, became knights in the baron's retinue. The estate-in-land held by barony if containing a significant castle as its caput and if especially large, that is to say consisting of more than about 20 knight's fees (each loosely equivalent to a manor), was termed an "honour". Constituent manors of a barony were mostly subinfeudated by the baron to his own knights or followers, with a few retained tenantless as his demesne. Most English Feudal Barons were converted to baronies of writ or peerage according to the Abolition Act of 1660. The baronies not converted became baronies of free socage, a dignity title.
There exist today a very few cases of English families which, had it not been for the 1660 Act, would still be feudal barons of ancient creation. One such is the Berkeley family, which although its Earldom of Berkeley became extinct in 1942 and it recently lost its older peerage title Baron Berkeley to a female line, still possesses and resides (that is to say retains tenure) as county gentry at Berkeley Castle in 2014, the caput of the feudal barony of Berkeley granted by King Henry II (1154-1189) to its direct ancestor in the male line Robert FitzHarding (d.1171), whose son took the surname de Berkeley.
Under the Ancien Régime until the abolition of the feudal system in 1789, a French baron was any noble in possession of fief called a barony. As such, possession of the title and the land were in theory inextricably linked. Nevertheless, nobles without any fief of their own might assume the title of baron for themselves.
In contrast to the English equivalent, the Scottish feudal barony retains a dignity preserved by the "Abolition of Feudal Tenure, etc (Scotland) Act 2000". A feudal barony is the only title of dignity legally assignable and able to be legally alienated from the bloodline of its previous possessor. The heraldry and legal determination of ownership of Scottish baronies are governed by the court of the Lord Lyon.
- Several of the men granted feudal baronies by William the Conqueror were of obscure Norman origin who had served conspicuously during the Norman Conquest and had revealed valuable personal qualities to a king seeking to establish his rule in a conquered land (e.g. Turstin FitzRolf, feudal baron of North Cadbury)
- Sanders refers to the "Lord" of Halton being the hereditary constable of the County Palatine of Chester, and omits Halton from both his lists