Nielsen Hayden genealogy
Descendants of Baldwin fitz Gilbert
- 1090Father: Gilbert fitz Godfrey (Abt 1010 - 1040 Eschafour, Eu, Seine-Inferieure, Normandy, France)
Baldwin fitz Gilbert ( - 1090)
   └─ (Unknown) fitz Baldwin (of Dolton, Devon, England - ??)
    William d'Avranches ( - Abt 1087)
       └─ Robert d'Avranches
        (Unknown daughter of Gelduin of Dol) (of Dol-de-Bretagne, Brittany, France - ??)
            + William de Curcy (Abt 1130 - 1162)(m. Abt 1155)