Isabeau was the daughter of Jean IV d'Auxy and Jeanne de Flavy. The date and place of her birth have not been found.
Her husband was Philippe de Crèvecœur. They were married, but the date and place have not been found. They had no known children.
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Jean IV d'Auxy |
David d'Auxy |
Jean III d'Auxy |
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Catherine de Melun |
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Guillaume de la Trémoïlle |
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Marie de Mello |
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Jean de Flavy |
Raoul de Flavy |
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Blanche de Clermont-Nesle |
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Marie Jeanne d'Antoing |
Henri d'Antoing |
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Marie de Clary |
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | dame d'Auxy |