Nielsen Hayden genealogy
Descendants of Hawise
- Aft 1135
Hawise
( - Aft 1135)
Stephen of Brittany ( - 21 Apr 1135 bur.St. Mary's, York, Yorkshire, England)
   ├─ Maud of Brittany
   │ Walter de Gant (of Folkingham, Bourne, Lincolnshire, England - 1139 Bardney Abbey, Yorkshire, England)
   │ (m. Bef 1120)
   │ (m. Bef 1120)
   │    ├─ Agnes de Gant
   │    │ William de Mohun (Bef 1110 of Dunster, Williton, Somerset, England - Aft 1142)
   │    │    └─ William de Mohun (of Dunster, Williton, Somerset, England - 1176) =>
   │    │     + Godehilde de Tony ( - Bef 1186)
   │    ├─ Alice de Gant
   │    │ Roger de Mowbray ( - 1188 Palestine)(m. Abt 1145)
   │    │    └─ Nele de Mowbray (of Thirsk, Yorkshire, England - 1191 Acre, Palestine) =>
   │    │     + Mabel ( - Abt 1203)(m. Bef Sep 1170)
   │    ├─ (Unknown daughter of Walter de Gant)
   │    │ William ( - Bef 1198)
   │    │     + Maud ( - Aft 29 Sep 1206)
   │    └─ Robert de Gant (of Folkingham, Bourne, Lincolnshire, England -
   │     1191 bur.Vaudey Abbey, Lincolnshire, England)
   │     1191 bur.Vaudey Abbey, Lincolnshire, England)
   │     Gunnor d'Aubeney
   │     :   └─ Gilbert de Gant (Abt 1180 of Folkingham, Bourne, Lincolnshire, England - Bef 22 Jan 1242) =>
   │     :    +
   │     + Alice Paynell ( - Bef 1180)(m. Bef 10 Aug 1152)
   ├─ Tiphaine
   │ Rabel de Tancarville (of Tancarville, Normandy, France - 1140)
   │    └─ William de Tancarville (of Tancarville, Normandy, France - ??)
   │    
   │        └─ Osbert de Clinton (of Coleshill, Warwickshire, England - Bef 1221) =>
   │         + Margaret de Hatton
   ├─ Olive of Brittany ( - Aft 1173)
   │ Henri de Fougères ( - Abt 1150 Savigny Abbey, Normandy, France)
   │    └─ Raoul II de Fougères ( - Between 1191 and 1194)
   │     Mathilde
   │         + Agatha du Hommet
   └─ Alan III (Bef 1100 - 15 Sep 1146 Brittany, France)
    Bertha of Brittany (Abt 1119 - Between 1162 and 1167)(m. Abt 1137)
       └─ Conan IV (Abt 1138 - 20 Feb 1171)
        Margaret of Huntingdon (Abt 1145 - 1201 bur.Sawtrey Abbey, Huntingdonshire, England)(m. 1160 England)
           └─ Constance of Brittany (Abt 1162 - 4 Sep 1201 Nantes, Brittany, France) =>
            + Guy de Thouars (Abt 1155 - 13 Apr 1213 Chemillé, France)(m. Bef Oct 1199)