Nielsen Hayden genealogy
Descendants of Eudon II of Brittany and Porhoët
- Bef 1195Father: Geoffrey of Porhoët
Mother: Hawise
Eudon II of Brittany and Porhoët ( - Bef 1195)
Aliénor de Leon (m. Bef 1168)
   └─ Eudon Fitz Count ( - 1231)
    Marguerite
       └─ Mathilde of Porhoët ( - Bef 1231)
        Geoffroi de Fougères ( - 1212 bur.Savigny Abbey, Normandy, France)
           └─ Raoul de Fougères ( - 24 Feb 1256 bur.Savigny Abbey, Normandy, France) =>
            + Isabel de Craon (Aft 1223 - Aft 15 Jan 1275)(m. Feb 1234)