Nielsen Hayden genealogy
Osbern fitz Herfast
- Abt 1040(
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- 1 Osbern fitz Herfast [1] d. Abt 1040
- Emma d'Ivry, Abbess of St. Amand
- 2 William fitz Osbern [1.1] b. Between 1025 and 1030 d. 20 Feb 1071
- Adeliza de Tosny b. Between 1030 and 1035 d. 5 Oct 1066
- 3 St. William of Breteuil [1.1.1] d. 1103
- (Unknown mistress of William de Breteuil)
- 4 Isabel de Breteuil [1.1.1.1]
[ =>]
- 4 Isabel de Breteuil [1.1.1.1]
- + Adelaide of Aumale
- 3 Emma de Breteuil [1.1.2] d. Aft 1096
- Ralph I de Gael b. Bef 1040 d. Aft 1096
- 4 Ralph II de Gael [1.1.2.1]
[ =>]
- 4 Ralph II de Gael [1.1.2.1]
- 3 St. William of Breteuil [1.1.1]
- + Richilde of Hainaut b. Between 1015 and 1020 d. 15 Mar 1086
- 2 William fitz Osbern [1.1]