Nielsen Hayden genealogy
Constance de Courtenay

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- 1 Constance de Courtenay [1] b. Abt 1174 d. Aft 1231
Gasce de Poissy d. 14 Aug 1189
- 2 Mahaut de Châteaufort [1.1]
d. Aft 25 Jul 1267
Bouchard I de Marly d. 13 Sep 1226
- 3 Mabile de Marly [1.1.1]
Guglielmo Etendard d. Between 17 Jan 1271 and 24 Feb 1271
- 4 Guglielmo II Etendard [1.1.1.1]
d. Aft 1281 [ =>]
- 4 Guglielmo II Etendard [1.1.1.1]
- 3 Bouchard II de Marly [1.1.2]
d. 1 Jun 1250
Agnes Beaumont d. Aft 5 May 1260
- 4 Isabelle de Marly [1.1.2.1]
d. 3 Sep 1292 [ =>]
- 4 Isabelle de Marly [1.1.2.1]
- 3 Mabile de Marly [1.1.1]
- 2 Mahaut de Châteaufort [1.1]