Nielsen Hayden genealogy
Descendants of Clémence des Roches
- Aft 1259Father: Guillaume des Roches (Between 1155 and 1160 - 15 Jul 1222)
Mother: Marguerite de Sablé ( - Aft 20 Jul 1238)
Clémence des Roches ( - Aft Sep 1259)
Geoffroi VI de Châteaudun (1218 - 6 Feb 1250)(m. Between 17 May 1219 and 15 Jul 1222)
   └─ Jeanne de Châteaudun ( - Abt 1254 bur.Maubuisson Abbey near Pontoise, near Paris, France)
    Jean de Brienne ( - 8 Jan 1296 bur.Maubuisson Abbey near Pontoise, near Paris, France)(m. 1251)
       └─ Blanche de Brienne
        Guillaume de Fiennes (of Wendover, Buckinghamshire, England - 11 Jul 1302 Kortrijk, Flanders)
        (m. Between 18 Jan 1266 and Feb 1267)
        (m. Between 18 Jan 1266 and Feb 1267)
           │ + Edmund de Mortimer (Between 1251 and 1254 of Wigmore, Herefordshire, England -
           │ 17 Jul 1304 Wigmore Castle, Herefordshire, England)(m. Bef 12 Dec 1285)
           │ 17 Jul 1304 Wigmore Castle, Herefordshire, England)(m. Bef 12 Dec 1285)
           │ + John Wake (Abt 1268 - Abt 10 Apr 1300)(m. Bef 24 Aug 1291)
            + Isabelle de Dampierre ( - 1323)(m. 1307)