Nielsen Hayden genealogy
Descendants of Pierre I dit Montrabel de Preuilly
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Father: Eschivard I de Preuilly
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Pierre I dit Montrabel de Preuilly
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               └─ Geoffroi VI de Châteaudun
(1218 - 6 Feb 1250)
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Clémence des Roches
( - Aft Sep 1259)(m. Between 17 May 1219 and 15 Jul 1222)
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                   └─ Jeanne de Châteaudun
( - Abt 1254 bur.Maubuisson Abbey near Pontoise, near Paris,
                    France)
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                    France)
                   
Jean de Brienne
( - 8 Jan 1296 bur.Maubuisson Abbey near Pontoise, near Paris, France)
                    (m. 1251)
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                    (m. 1251)
                       └─ Blanche de Brienne
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Guillaume de Fiennes
(of Wendover, Buckinghamshire, England -
                        11 Jul 1302 Kortrijk, Flanders)(m. Between 18 Jan 1266 and Feb 1267)
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                        11 Jul 1302 Kortrijk, Flanders)(m. Between 18 Jan 1266 and Feb 1267)
                           ├─ Margaret de Fiennes
( - 7 Feb 1344) =>
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                           │ + Edmund de Mortimer
(Between 1251 and 1254 of Wigmore, Herefordshire, England
                           │ - 17 Jul 1304 Wigmore Castle, Herefordshire, England)(m. Bef 12 Dec 1285)
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                           │ - 17 Jul 1304 Wigmore Castle, Herefordshire, England)(m. Bef 12 Dec 1285)
                           ├─ Joan de Fiennes
( - Bef 26 Oct 1309) =>
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                           │ + John Wake
(Abt 1268 - Abt 10 Apr 1300)(m. Bef 24 Aug 1291)
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                           └─ Jean de Fiennes
( - Aft 1324) =>
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                            + Isabelle de Dampierre
( - 1323)(m. 1307)
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