Otuel Coz d'Avranches was born circa 1073 to Hugues d'Avranches (1047-1101) and died 25 November 1120 Sinking of the Blanche Nef of drowning. He married Fille de Subligny .
Children
| Name | Birth | Death | Joined with |
| Hasculphe d'Avranches (c1110-1169) | 1110 | 1169 | Denise d'Avranches (c1115-c1162) |
Footnotes (including sources)
| ‡ General |
| Ω Birth |
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