Nielsen Hayden genealogy
Descendants of Barthelemy de Grandison
Abt 1108 - 1158 (~ 50 years)Father: Ebel de Grandison ( - Between 1130 and 1135)
Mother: Adelaide
Barthelemy de Grandison (Abt 1108 - 1158 Jerusalem)
Jordane ( - Aft 1157)
   └─ Ebel de Grandison (Abt 1144 - Between 1235 and 1236)
    (Unknown daughter of Amadeus I of Geneva) ( - Aft 1234)
       └─ Pierre de Grandison (Abt 1186 - 1258)
        Agnès de Neufchâtel (Between 1207 and 1209 - Aft 15 Apr 1283 bur.Priory Church of Saint-Jean Baptiste,
        Grandson, Jura-Nord Vaudois, Vaud, Switzerland)(m. Abt 1225)
        Grandson, Jura-Nord Vaudois, Vaud, Switzerland)(m. Abt 1225)
           └─ William de Grandison (Between 1250 and 1251 -
            27 Jun 1335 bur.Dore Abbey, Herefordshire, England) =>
            27 Jun 1335 bur.Dore Abbey, Herefordshire, England) =>
            + Sibyl de Tregoz (Abt 1272 - 21 Oct 1334 Dore, Herefordshire, England)(m. Bef 1286)