The feudal barony of Okehampton was a very large feudal barony, the largest mediaeval fiefdom in the county of Devon, England, whose caput was Okehampton Castle and manor. It was one of eight feudal baronies in Devonshire which existed during the mediaeval era.
The first holder of the feudal barony of Okehampton was Baldwin FitzGilbert (died 1090) called in the Latin Domesday Book of 1086 Baldvinus Vicecomes, "Baldwin the Vice-Count" (of the County of Devon), which office equated to the earlier Saxon office of Sheriff of Devon. The Norman office of Viscount soon was replaced by that of Sheriff, thus Baldwin is known in modern times as "Baldwin the Sheriff", but also has several other aliases, such as "Baldwin de Moels", (or "Meules", "Moeles", etc.) "Baldwin FitzGilbert" and "Baldwin de Brionne". He was the younger son of Gilbert, Count of Brionne, and took his name "de Moels" from the manor of Meulles in Calvados, Normandy. His fiefdom listed in Domesday Book comprised 176 land-holdings, mostly manors, but 2 of which, listed first, comprised groups of houses in Barnstaple and Exeter. The third holding listed for his fiefdom is Okehampton: Ipse Balduin ten(et) de rege Ochementone, ibi sedet castellum ("Baldwin himself (i.e. in demesne) holds Okehampton from the king, there sits his castle"). The nature of the feudal land tenure for feudal barons was per baroniam, that is to say they were bound to serve the king as one of his barons, which involved onerous duties not only of attending parliaments to advise the king but also of providing knights and soldiers for military service to the royal army for specified periods each year. The baron himself was frequently present in battle.
The descent in the de Moels family was as follows:
The barony comprised originally the following manors held in-chief per baroniam by Baldwin the Sheriff, in order of Domesday Book listing: