*William Fitzosbern
born about 1030 Poitiers, Poitou, France
died 20 February 1070/71 Flanders
buried Cormeilles Abbey, France

father:
*Osbern de Crepon
born about 1000 Normandy, France

mother:
*Emma d'Ivry
born about 1008 Ivry, France
married about 1029 France

siblings:
Osbern Fitzosbern born about 1032 Normandy, France
*Emma Fitzosbern born about 1034 Normandy, France

spouse:
*Alice (Adelise) de Toeni
born about 1035 Tosni,, France
buried Lire Abbey, France
married Abt 1051 Of France

children:
William Fitzwilliam born about 1052 Breteuil, Normandy, France
Roger de Bretueil born about 1056 Herefordshire, England died after 1086
Ralph Fitzwilliam born about 1058 Herefordshire, England
John Fitzwilliam born about 1060 Breteuil, Normandy, France died before 20 February 1070/71
Richard Fitzwilliam born about 1062 Breteuil, Normandy, France died before 20 February 1070/71
*Emma Fitzosbourne born about 1059 Breteuil, Normandy, France died after 1095
*Adeliza Fitzosbern born about 1037? Normandy, France

biographical and/or anecdotal:

notes or source:
LDS