| William De Mandeville |
| Father: Geoffrey De Mandeville | Mother: Adeliza De Balts |
| Born: abt 1054 of Great Waltham, Essex, England |
Died: abt 1130 of England |
| Spouse: Margaret De Rie | Married:
abt 1083 England |
| Children: Beatrix De Mandeville Geoffrey De Mandeville | Brothers & Sisters:
Miss De Mandeville Geoffrey De Mandeville |