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Male William Fitz Osbert Click to view William Fitz Osbert in the family tree

William was born in 1030 in Poitiers, Poitou, France.  William's father was Robert Osbern de Crepon and his mother was Emma Aldreda of Ivry.  His paternal grandfather was Herfast de Crepon; his maternal grandfather was Ralph Count of Ivry. He had a half-brother named Richard.  He died at the age of 41 in 1071.


William's family with Adeleiza de Toeni

They had a daughter named Adeliza.

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