Feudal barony of Dunster 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"
Feudal barony of Dunster Milton Abbey, Dorset, and the couple made many extravagant alterations to the Castle, including the addition of the carved wooden staircase and a new dining-room with elaborate plasterwork ceilings. An inventory dated 1690 survives, which lists the sumptuous fittings and furnishings at that date. By his wife Mary Tregonwell he had two daughters, Mary and Frances, and a son and heir Tregonwell Luttrell (1683–1703), of Dunster Castle, who died without children. Tregonwell Luttrell (1683–1703), son, who died without children. Col. Alexander Luttrell (1663–1711), uncle, youngest son of Francis Luttrell (1628–1666) of Dunster Castle. He matriculated at Christ Church, Oxford in