Isabelle was the daughter of Guillaume FitzOsbern and Adelize de Tosny. The date and place of her birth have not been found.
Her husband was Ascalin Gouel de Perceval. They were married, but the date and place have not been found. They had no known children.
|
Guillaume FitzOsbern |
Osbern de Crépon |
Herfast de Crépon |
||||||
|
Cyrid |
||||||||
|
Emma de Bayeux |
Raoul de Bayeux |
+ | ||||||
|
Eremburge de Caux |
||||||||
|
Roger I de Tosny |
Raoul II de Tosny |
|||||||
| | ||||||||
|
Godehilde |
Raimond-Borrell III de Barcelone |
+ | ||||||
|
Ermisende de Carcassonne |
+ |