His birth date range is suggested by his absence from any charters of King William I, which indicates that he may have come of age in the latter part of the king’s reign. Domesday Book records “Hugh de Beauchamp” holding land in Bengeo in Hertford Hundred in Hertfordshire; Linslade and Soulbury in Cottesloe Hundred and Lathbury in Bunsty Hundred in Buckinghamshire; and numerous properties in Bedfordshire. William II King of England confirmed to "Hugh of Beauchamp and all his barons of Bucks" that Gilbert Abbot of Westminster had proved his title to land granted by King William I, by charter dated to [1087/95]. "…Hugo de Beauchamp…" witnessed the undated charter under which King William II instructed Ramsey abbey to return fugitives if found. "Hugh de Beauchamp, Ralph Paganel" witnessed the charter dated to [1094/1100] under which William II King of England granted a market to St Mary of Thorney.
Married Matilda daughter of ----. Her marriage is confirmed by the Chronicon Rameseiensis which records a donation which names "quatuor ex hominibus Simonis de Bellocampo et Mahald matris eius", dated to [1124/30]. A charter of Ramsey abbey dated to [1124/30] names "Simonis de Bello Campo et Mahald matris eius". 1
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