Nielsen Hayden genealogy
Family: Roger de Tony / Ida de Hainaut (F2919)
m. Abt 9 Aug 1138Ralph de Tony (1081-1126) 
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Alice of Northumberland ( -1127)
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| Baldwin III of Hainaut (1088-1120)
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| Yolande von Wassenberg (1090-1155)
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Baldwin IV of Hainaut (1110-1171)  |
| Roger de Tony (1104-1158)
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| Godehilde de Tony ( -1185) |
| Ralph de Tony (1140-1162) |