Feudal barony of Trematon  The Feudal barony of Trematon (or Honour of Trematon) was one of the three feudal baronies in Cornwall which existed during the mediaeval era. Its "caput" was at Trematon Castle, Cornwall. In 1166 it comprised 59 knight's fees, thus about 59 separate manors. The barony of Trematon was unusual in that unlike most other English feudal baronies it was not held from the king in-chief but from the descendants of Robert, Count of Mortain, half-brother of King William the Conqueror. It was held for several generations by the de Vautort family, Latinized as "de Valletorta", which was once thought to come from Vautorte in Maine, but has since been shown to originate in Torteval in Normandy. The descent of the barony was as follows:   What was left of the estates eventually found its way to the descendants of two daughters of Ralph I de Vautort. A younger son of Reginald I de Vautort was Joel de Vautort, whose descendants held lands in Somerset centred on the manor of Currypool in Spaxton until about 1332.