Nielsen Hayden genealogy
Family: John Fitz Alan / Maud de Verdun (F5606)
m. Bef 1240John Fitz Alan ( -1240) 
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Isabel d'Aubigny ( -1239)
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| Theobald le Boteler (1200-1230)
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| Rohese de Verdun ( -1247)
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John de Verdun (1226-1274)  |
| John Fitz Alan (1223-1267)
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| Maud de Verdun ( -1283)
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| John Fitz Alan (1246-1272) |