Nielsen Hayden genealogy
Ermengarde of Anjou

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- 1 Ermengarde of Anjou [1] b. Abt 1066 d. Abt 1146
Alain Fergant b. Abt 1066 d. 13 Oct 1119
- 2 Hawise Fergant [1.1]
Geoffrey de Porhoët b. 1092 d. 1141
- 3 Alan la Zouche [1.1.1]
d. 1190
Alice de Belmeis d. Aft 1190
- 4 Roger la Zouche [1.1.1.1]
b. Abt 1175 d. Bef 14 May 1238 [ =>]
- 4 Roger la Zouche [1.1.1.1]
- 3 Alan la Zouche [1.1.1]
- 2 Conan III of Brittany [1.2]
b. Abt 1093 d. 1148
Maud fitz Roy
- 3 Constance of Brittany [1.2.1]
d. 1148
Geoffroi II de Mayenne b. Abt 1135 d. 18 Feb 1165
- 4 Mathilde de Mayenne [1.2.1.1]
[ =>]
- 4 Clémence de Mayenne [1.2.1.2]
d. Bef 1190 [ =>]
- 4 Mathilde de Mayenne [1.2.1.1]
- 3 Bertha of Brittany [1.2.2]
b. Abt 1119 d. Between 1162 and 1167
- 3 Constance of Brittany [1.2.1]
- 2 Hawise Fergant [1.1]