Descent of

Show Guillaume IV de Saint Omer's parentsShow Guillaume IV de Saint Omer's parents
Show Ide d'Avesnes's parentsShow Ide d'Avesnes's parents
Guillaume IV de Saint Omer
(1150-1189)
 united to
Ide d'Avesnes
(~1150-01/01/1210)
united on 16/05/1171

Ida de Saint-Omer (~1173-) Show this unionShow this union Gérard de Douai (1140-1221) Show their descendants
Nicolas de Saint-Omer (1188-1218) Show this unionShow this union Marguerite de Hongrie (~1184-1223) Show their descendants
Alliette de Saint-Omer (1183-1241) Show this unionShow this union Charles d'Aubigny en Artois (1175-1240) Show their descendants
Beatrix de Saint Omer (1180-24/04/1254) Show this unionShow this union Philippe d'Aire (1170-~1230) Show their descendants


Source 1 jpmoroval
Source 2 nobily
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