Constance was born about 1190, the daughter of Eudon de Pontchâteau and Constance de Rohan. The place is not known.
She died about 1225. The place is not known.
Her husband was Guillaume I de Clisson, who she married in ABT 1206. The place has not been found. Their only known child was Olivier I (1206-1262).
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Constance de Pontchâteau |
Eudon de Pontchâteau |
Olivier de Pontchâteau |
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Constance de Rohan |
Alain III de Rohan |
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Constance de Bretagne |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Birth | ABT 1190 |
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| Death | ABT 1225 |
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