Isabelle was the daughter of Gautier II d'Avesnes and Marguerite de Blois. The date and place of her birth have not been found.
Her husband was Jean. They were married, but the date and place have not been found. They had no known children.
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Gautier II d'Avesnes |
Jacques d'Avesnes |
Nicolas d'Avesnes |
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Mathilde de la Roche |
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Adèle de Guise |
Bouchard II de Guise |
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Avoye de Soupir |
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Marguerite de Blois |
Thibaut V de Blois |
Thibaut de Blois |
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Mechtild von Kärnten |
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Alix Capet |
Louis VII Capet |
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Aliénor d'Aquitaine |
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