The feudal barony of Gloucester or Honour of Gloucester was one of the largest of the mediaeval English feudal baronies in 1166, comprising 279 knight's fees,[1] or manors. The constituent landholdings were spread over many counties. The location of the caput at Gloucester is not certain as Gloucester Castle appears to have been a royal castle, but it is known that the baronial court was held at Bristol in Gloucestershire.[2]