Isabelle was born about 1361 in Palermo, Sicilia, Italia , the daughter of Roger-Bernard II (IV) de Foix-Castelbon and Gérarde de Navailles.
She died in 1426 in Béarne.
Her husband was Archambaud de Grailly, who she married on 20 AUG 1380 in Civrac-en-Médoc, Lesparre-Médoc, Gironde, Aquitaine, France . Their five known children were Jean III (1382-1436), Gaston I (IV) (1384-c1458), Archambaud (?->1419), Mathieu (?-1453) and Pierre (1386-1464).
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Isabelle de Foix-Castelbon |
Roger-Bernard II (IV) de Foix-Castelbon |
Roger-Bernard I (III) de Foix-Castelbon |
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Constança Pérez de Luna |
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Gérarde de Navailles |
Garcie-Arnaud V de Navailles |
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Bernarde de Miramont |
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| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | ABT 1361 |
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| Death | 1426 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | FROM AUG 1398 TO 1412 | comtesse de Foix | ||||
| Nobility Title | FROM AUG 1398 TO 1412 | vicomtesse de Béarn, de Marsan et de Lautrec | ||||
| Nobility Title | FROM AUG 1398 TO 1412 | co-princesse d'Andorre | ||||
| Nobility Title | FROM 1400 TO 1412 | vicomtesse de Castelbon |
Note 1
Note 2
not Richards ancestor