Nielsen Hayden genealogy
Family: William IX of Aquitaine / Philippa of Toulouse (F4013)
m. 1094Guy-Geoffrey of Poitou (1024-1086) 
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Hildegarde of Burgundy (1050-1105)
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| William IV of Toulouse (1040-1093)
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| Emma of Mortain ( -1135)
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| William IX of Aquitaine (1071-1126)
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| Philippa of Toulouse ( -1117)
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William X of Aquitaine (1099-1136)  |
| Agnes of Aquitaine (1105-1159) |