Nielsen Hayden genealogy
Family: Robert IV de Dreux / Beatrix de Montfort (F27155)
m. Abt 1259
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Jean I de Dreux (1215-1249)
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Marie de Dampierre-Bourbon (1220-1274)
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| Jean I de Montfort ( -1249)
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| Jeanne de Châteaudun (1227-1254)
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| Robert IV de Dreux (1241-1282)
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| Beatrix de Montfort (1248-1311)
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Jeanne de Dreux ( -1324)  |