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http://en.wikipedia.org/wiki/Humphrey_I_de_Bohun

Humphrey I de Bohun was an Anglo-Norman aristocrat, the youngest son of Humphrey with the Beard, who had taken part in the Norman conquest of England in 1066. He married Maud, a daughter of the Anglo-Saxon landholder Edward of Salisbury, through whom he acquired an honour in Wiltshire with its seat at Trowbridge. He was succeeded by his son Humphrey II, who with his mother founded the Cluniac priory of Monkton Farleigh to fulfill the late Humphrey's wishes. By his marriage he was "the founder of the fortunes of his family" and for this reason is usually enumerated "Humphrey I" even though he was the second Humphrey de Bohun in England.[1] He has even been called Humphrey the Great.[2]

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http://en.wikipedia.org/wiki/Humphrey_II_de_Bohun