Nielsen Hayden genealogy
Descendants of Robert II de Bellême
1057 - Aft 1129 (> 73 years)Father: Roger de Montgomery (of St. Germain de Montgommeri, Calvados, Normandy, France - 27 Jul 1094 Shrewsbury Abbey, Shropshire, England)
Mother: Mabel de Bellême ( - Dec 1077 Bures-sur-Dives, Normandy, France)
Robert II de Bellême (1057 Sées, Orne, Normandy, France - Aft 1129)
Agnes de Ponthieu ( - Aft 1100)(m. Bef 9 Sep 1087)
   └─ Guillaume III Talvas (Abt 1093 of Alençon, Orne, Basse-Normandie, France - 30 Jun 1171)
    Helie of Burgundy (Abt 1080 Dijon, Côte-d'Or, Burgundy, France - 28 Feb 1142)(m. Abt 1115)
       ├─ Ela of Ponthieu (of Alencon, Orne, Basse-Normandie, France - 4 Oct 1174)
       │ William III de Warenne (Abt 1119 Warwick, Warwickshire, England - Abt 7 Jan 1148 Laodicea, Anatolia)
       │ :   ├─ Isabel de Warenne ( - Aft Apr 1203 bur.Lewes Priory, Sussex, England) =>
       │ :   │ + Hamelin of Anjou (of Lewes, Sussex, England - 7 May 1202 bur.Lewes Priory, Sussex, England)
       │ :   │ (m. Apr 1164)
       │ :   │ (m. Apr 1164)
       │ :    + John, King of England (Abt 27 Dec 1166 Oxford, Oxfordshire, England -
       │ :    19 Oct 1216 Newark Castle, Newark, Nottinghamshire, England)
       │ :    19 Oct 1216 Newark Castle, Newark, Nottinghamshire, England)
       │ Patrick of Salisbury (Bef 1120 - 27 Mar 1168 Lusignan, Vienne, Poitou-Charentes, France)(m. Bef 1153)
       │    └─ William fitz Patrick (of Chitterne, Warminster, Wiltshire, England -
       │     17 Apr 1196 bur.Bradenstoke Priory, Wiltshire, England) =>
       │     17 Apr 1196 bur.Bradenstoke Priory, Wiltshire, England) =>
       │     + Eleanor de Vitré ( - Bef 12 Aug 1233 bur.Abbey of Mondaye, Bayeux, Calvados, Normandy, France)
       │     (m. Abt 1191)
       │     (m. Abt 1191)
       ├─ Guy II of Ponthieu ( - 1147)
       │ Ida (m. Bef 18 Dec 1139)
       │    └─ Jean I of Ponthieu (Abt 1140 - 30 Jun 1191 Acre, Palestine) =>
       │     + Beatrice Campdavaine (Abt 1160 of St. Pol, France - Aft 1204)(m. Bef 4 Dec 1170)
       └─ Clemence de Ponthieu ( - Bef 20 Nov 1189)
        Juhel I de Mayenne ( - 23 Dec 1161)(m. Bef 1120)
           └─ Geoffroi II de Mayenne (Abt 1135 - 18 Feb 1165) =>
            + Constance of Brittany ( - 1148)(m. Abt 1135)