Guillaume was the son of Guillaume FitzOsbern and Adelize de Tosny. The date and place of his birth have not been found.
He died on 12 JAN 1103. The place is not known.
His wife was Adeline de Montfort. They were married, but the date and place have not been found. They had no known children.
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Guillaume de Breteuil |
Guillaume FitzOsbern |
Osbern de Crépon |
Herfast de Crépon |
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Cyrid |
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Emma de Bayeux |
Raoul de Bayeux |
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Eremburge de Caux |
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Roger I de Tosny |
Raoul II de Tosny |
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Godehilde |
Raimond-Borrell III de Barcelone |
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Ermisende de Carcassonne |
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| Event | Date | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|
| Death | 12 JAN 1103 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | seigneur de Breteuil et de Pacy |