Guillaume was born about 1330, the son of Guy de Chalençon and Isabeau d'Auvergne. The place is not known.
He died in 1407. The place is not known.
He had two marriages/partners. His first wife was Valpurge de Polignac, who he married in 1349. The place has not been found. Their five known children were Achard I (c1354-?), Béatrice (c1355-c1420), Isabeau (c1350-?), Pierre-Armand IX (1351-<1447) and Marguerite (c1355-1378).
His second wife was Catherine de la Mothe Saint Jean, who he married on 27 AUG 1378. The place has not been found. Their only known child was Isabelle (c1380-1423).
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Guillaume de Chalençon |
Guy de Chalençon |
sieur Guillaume de Chalençon |
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Clémence de la Roche-en-Régnier |
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Isabeau d'Auvergne |
Jean I d'Auvergne |
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Anne de Poitiers-Valentinois |
Aymar III de Poitiers-Valentinois |
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Margherita di Savoia |
| Event | Date | Details | Source | Multimedia | Notes |
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| Birth | ABT 1330 |
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| Death | 1407 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | baron de Chalençon |