Pons FitzWilliam d'Eu was born circa 1024 to Guillaume I of Eu (985-1058) and Lanceline of Harcourt (1003-1069) and died circa 1071 of unspecified causes. He married Basilia .
Siblings
| Name | Birth | Death | Joined with |
| Robert I of Eu (1021-1089) | 1021 | 8 September 1089 | Béatrix de Falaise Matilda of Sicily (1062-bef1094) |
| Guillaume Busac of Eu (1022-1077) | 1022 | 1077 | Adelaide de Soissons (1026-1097) |
| Hugues of Eu (c1023-c1077) | 1023 | 1077 | |
| Pons FitzWilliam (c1024-c1071) | 1024 | 1071 | Basilia |
Children
| Name | Birth | Death | Joined with |
| Pons FitzPons (c1052-1086) | 1052 | 1086 | |
| Walter FitzPons (c1053-c1100) | 1053 | 1100 | |
| Dru FitzPons (c1054-1095) | 1053 | 1095 | |
Footnotes (including sources)
| ‡ General |
| Ω Birth |
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| ¶ Death |
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