Nielsen Hayden genealogy
Family: Guy de Thouars / Constance of Brittany (F10577)
m. Bef Oct 1199
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Conan IV (1138-1171)
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Margaret of Huntingdon (1145-1201)
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| Guy de Thouars (1155-1213)
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| Constance of Brittany (1162-1201)
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Alix de Thouars (1201-1221)  |