Nielsen Hayden genealogy
Descendants of Gautier II of Brienne
- Bef 1161Father: Erard I of Brienne ( - 1114)
Mother: Alix
Gautier II of Brienne ( - Bef 1161)
   ├─ Erard II de Brienne ( - 1191)
   │ Agnès
   │    ├─ Gauthier III de Brienne (Abt 1165 - Jun 1205 Sarno, Campania, Italy)
   │    │ Elvira de Lecce ( - Aft 1216)(m. 1200 Melun, Seine-et-Marne, Île-de-France, France)
   │    │    └─ Gauthier IV de Brienne (1205 - Between 1247 and 1251 Cairo, Egypt) =>
   │    │     + Marie de Lusignan (1215 - Aft 1251)(m. Abt 1233)
   │    └─ Jeane de Brienne, King of Jerusalem; Latin Emperor of Constantinople (Abt 1175 -
   │     23 Mar 1237 Constantinople)
   │     23 Mar 1237 Constantinople)
   │     Bérenguère of Castile-León (Abt 1199 - 12 Apr 1237 Constantinople)(m. 1223 Burgos, Castile, Spain)
   │        ├─ Jean de Brienne ( - 8 Jan 1296 bur.Maubuisson Abbey near Pontoise, near Paris, France) =>
   │        │ + Jeanne de Châteaudun ( - Abt 1254 bur.Maubuisson Abbey near Pontoise, near Paris, France)(m. 1251)
   │         + Agnes de Beaumont
   └─ André de Brienne (Abt 1135 - 4 Oct 1189 Acre, Palestine)
    Adélais ( - Between 20 Mar 1221 and Nov 1222)(m. Bef 1167)
       └─ Erard I de Brienne (Abt 1170 - 1246)
        Philippe de Champagne ( - 1250)
           └─ Isabeau de Brienne ( - Between 21 Aug 1274 and Feb 1277) =>
            + Henry V de Grandpré (Abt 1218 - Aft 7 Apr 1287)