Feudal barony of Dunster

The feudal barony of Dunster was an English feudal barony with its caput at Dunster Castle in Somerset. During the reign of King Henry I (1100–1135) the barony (or "honour") comprised forty knight's fees and was later enlarged. In about 1150 the manors retained in demesne were Dunster, Minehead, Cutcombe, Kilton and Carhampton in Somerset, and Ham in Dorset.

The historian the Duchess of Cleveland wrote as follows in her 1889 work Battle Abbey Roll concerning the origins of the de Mohun (alias Mohon, Moion, etc.) family:

The descent of the de Mohun family, feudal barons of Dunster, was as follows:

William de Moyon (died post 1090) (alias de Moion, later de Mohun), Domesday Book holder of Dunster Castle, 1st feudal baron of Dunster, was Seigneur of Moyon near Saint-Lô in Normandy and was Sheriff of Somerset in 1086. He was the founder of the English de Mohun family, prominent in the Westcountry, extinct in the male line seated at Dunster in 1375 and extinct in the junior male line seated at Mohuns Ottery in Devon at about the same time. He is recorded in the Domesday Book of 1086 as holding the manor of Torre (i.e. Dun's Tor) in demesne and "having his castle there".

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