Nielsen Hayden genealogy
Family: Baldwin V of Flanders / Marguerite of Lorraine (F137)
m. Apr 1169Baldwin IV of Hainaut (1110-1171) 
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Alix de Namur ( -1169)
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Agnès de Hainault ( -1173)  |
| Laurence de Hainault ( -1181) |
| Jolande of Hainaut ( -1202) |
| Thierri III of Lorraine (1098-1168)
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| Sibyl of Anjou (1112-1165)
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| Mathieu of Flanders (1138-1173) |
| Guy I (1140-1176) |
| Baldwin V of Flanders (1150-1195)
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| Marguerite of Lorraine (1140-1194)
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| Isabella of Flanders, Queen Consort of France (1170-1190) |
| Yolanda of Flanders (1175-1219) |
| Sybille de Hainaut (1179-1217) |