Nielsen Hayden genealogy
Descendants of Geoffroi I of Brittany
Abt 980 - 1008 (~ 28 years)Father: Conan I "Le Tort" ( - 27 Jun 992 Conquereuil, near Nantes, Brittany, France)
Mother: Ermengarde of Anjou ( - Aft 992)
Geoffroi I of Brittany (Abt 980 - 20 Nov 1008)
Hawise of Normandy ( - 21 Feb 1034)(m. Between 996 and 999)
   ├─ Alan III of Rennes (997 - 1 Oct 1040 Vimoutiers, Normandy, France)
   │ Bertha of Blois ( - Abt 1080)
   │    └─ Hawise of Rennes (Abt 1037 - 19 Aug 1072)
   │     Hoël II of Cornouaille (Abt 1031 -
   │     13 Apr 1084 bur.Abbey of Sainte-Croix de Quimperlé, Brittany, France)(m. 1066)
   │     13 Apr 1084 bur.Abbey of Sainte-Croix de Quimperlé, Brittany, France)(m. 1066)
   │         + Constance (1061 - 13 Aug 1090 bur.St. Melans, Rhedon, Brittany, France)(m. 1086)
   │         + Ermengarde of Anjou (Abt 1066 - Abt 1146)(m. 1093)
   └─ Eudon of Brittany (999 - 7 Jan 1079)
    Orguen ( - Aft 1056)
    :   └─ Stephen of Brittany ( - 21 Apr 1135 bur.St. Mary's, York, Yorkshire, England)
    :    Hawise ( - Aft 1135)
    :       │ + Walter de Gant (of Folkingham, Bourne, Lincolnshire, England -
    :       │ 1139 Bardney Abbey, Yorkshire, England)(m. Bef 1120)
    :       │ 1139 Bardney Abbey, Yorkshire, England)(m. Bef 1120)
    :       │ + Rabel de Tancarville (of Tancarville, Normandy, France - 1140)
    :       │ + Henri de Fougères ( - Abt 1150 Savigny Abbey, Normandy, France)
    :       └─ Alan III (Bef 1100 - 15 Sep 1146 Brittany, France) =>
    :        + Bertha of Brittany (Abt 1119 - Between 1162 and 1167)(m. Abt 1137)
    (Unknown mistress of Eudon of Brittany)
       ├─ (Unknown daughter of Eudon of Brittany)
       │ Enisan Musard ( - Between 1121 and 1130)
       │     + Roald fitz Harscod ( - Between 1152 and 1158)
       └─ Bardolf
       
           └─ Akaris fitz Bardolf (of Ravensworth, Yorkshire, England - ??) =>
            +