Nielsen Hayden genealogy
William d'Avranches
- Abt 1087(
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- 1 William d'Avranches [1] d. Abt 1087
- (Unknown) fitz Baldwin
- 2 Robert d'Avranches [1.1]
- (Unknown daughter of Gelduin of Dol)
- 3 Maud d'Avranches [1.1.1] d. 21 Sep 1173
- William de Curcy b. Abt 1130 d. 1162
- 4 Hawise de Courcy [1.1.1.1] b. Abt 1157 d. 31 Jul 1219
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- 4 Hawise de Courcy [1.1.1.1]
- 3 Maud d'Avranches [1.1.1]
- 2 Robert d'Avranches [1.1]