Nielsen Hayden genealogy
Descendants of Ermengarde of Anjou
Abt 1066 - Abt 1146 (~ 80 years)Father: Fulk IV "Le Rechin" (Abt 1043 - 14 Apr 1109)
Mother: Hildegarde de Beaugency ( - Bef 1070)
Ermengarde of Anjou (Abt 1066 - Abt 1146)
Alain Fergant (Abt 1066 - 13 Oct 1119)(m. 1093)
   ├─ Hawise Fergant
   │ Geoffrey de Porhoët (1092 - 1141)
   │    └─ Alan la Zouche (of North Molton, Devon, England - 1190)
   │     Alice de Belmeis (of Tong, Shropshire, England - Aft 1190)
   │        └─ Roger la Zouche (Abt 1175 of Black Torrington, Devon, England - Bef 14 May 1238) =>
   │         + Margaret Biset (of Kidderminster, Worcestershire, England - Aft 15 Aug 1232)
   └─ Conan III of Brittany (Abt 1093 - 1148)
    Maud fitz Roy (m. Bef 1113)
       ├─ Constance of Brittany ( - 1148)
       │ Geoffroi II de Mayenne (Abt 1135 - 18 Feb 1165)(m. Abt 1135)
       │    │ + Andre II de Vitré ( - Sep 1211)
       │     + Robert IV de Sablé ( - Abt 1195 Palestine)(m. Aft 1168)
       └─ Bertha of Brittany (Abt 1119 - Between 1162 and 1167)
        Alan III (Bef 1100 - 15 Sep 1146 Brittany, France)(m. Abt 1137)
            + Margaret of Huntingdon (Abt 1145 - 1201 bur.Sawtrey Abbey, Huntingdonshire, England)
            (m. 1160 England)
            (m. 1160 England)