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 to de Valletorta, alias Valletort) which originated at the manor of Vautorte in Mayenne, north-western France. The descent of the barony was as follows:

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