Nielsen Hayden genealogy
Family: John II of Hainault / Philippa of Luxembourg (F12778)
John d'Avesnes (1218-1257) 
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Adelaide of Holland (1230-1284)
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Jean II d'Avesnes (1247-1304)  |
| Guy d'Avesnes, Bishop of Utrecht (1253-1317) |
| Henry of Luxembourg (1217-1281)
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| Margaret of Bar (1220-1275)
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| Philippine de Luxemburg ( -1311) |
| Henry III of Luxembourg (1240-1288) |
| Walram I of Luxembourg (1243-1288) |
| Isabelle of Luxembourg (1247-1298) |
| Philippa of Luxembourg (1252-1311)
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| John II of Hainault (1247-1304)
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| William III of Hainault (1286-1337) |