Nielsen Hayden genealogy
Descendants of (Unknown) de Bar
Father: Renaud I of Mousson and Bar-le-Duc (Abt 1090 - 10 Mar 1149)
Mother: Gisele de Vaudemont (1090 - 1141)
(Unknown) de Bar
Conrad I (Abt 1110 - ??)(m. Abt 1145)
   ├─ Mathilde
   │ Manasses III ( - Between 1198 and 1200)
   │    └─ Hugues II ( - Between 26 May 1227 and Feb 1228)
   │     Felicité de Broyes ( - 1244)(m. Abt 1191)
   │        ├─ Mahaut de Rethel ( - Between 1 Jul 1259 and 19 Jun 1268) =>
   │        │ + Thomas II de Coucy ( - Between 1252 and 1253)(m. 1225)
   │        └─ Manasses IV de Réthel ( - Between 26 Jun 1271 and 3 Mar 1274) =>
   │         + Elisabeth d'Ecry (m. Bef Dec 1237)
   └─ Gerhard I
    Agnes of Bavaria
       └─ Beatrix
        Dietrich I (1192 - 4 Nov 1227)(m. 1225)
           └─ Dirk II von Heinsberg (Abt 1225 - 14 Oct 1268 Koln, Germany) =>
            + Bertha de Montjoie (Abt 1220 - Bef 12 Jul 1254)(m. Abt 1246)