Hugh de Montfort, commonly called Hugh with a Beard, son of Thurstan de Bastenburgh, accompanied William the Conqueror into England and aided that prince's triumph at Hastings, for which eminent service he obtained divers fair lordships and, at the time of the General Survey, was possessor of twenty-eight in Kent, with a large portion of Romney Marsh; sixteen in Essex; fifty-one in Suffolk; and nineteen in Norfolk. This gallant soldier eventually lost his life in a duel with Walcheline de Ferrers, and was s. by his son, Hugh de Montford. [Sir Bernard Burke, Dormant, Abeyant, Forfeited and Extinct Peerages, Burke's Peerage Ltd, London, England, 1883, p. 377, Montfort, Barons Montfort]
Note: According to Turton, Hugh d. in 1037, and his son Hugh d. about 1066 (maybe at the battle of Hastings?); so the above statement is not necessarily true.