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Male William FITZOSBERN Click to view William FITZOSBERN in the family tree

William was born about 1030 in Poitiers, Poitou, France.  William's father was Osbern  CREPON and his mother was Emma de IVREA.  His paternal grandfather was Herfast  CREPON; his maternal grandparents were Raoul (Ralph) de IVREA and Erneberge de CAUX.  He was an only child.  He died in Flanders, Belgium.


William's family with Alice de TOENI

They had a daughter named Adeliza de.