Agnes was the daughter of Gaston I (IV) de Foix and Marguerite d'Albret. The date and place of her birth have not been found.
Her husband was Pey Poton de Lamensan. They were married, but the date and place have not been found. They had no known children.
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Gaston I (IV) de Foix |
Archambaud de Grailly |
Pierre II de Grailly |
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Rosamburge de Périgord |
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Isabelle de Foix-Castelbon |
Roger-Bernard II (IV) de Foix-Castelbon |
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Gérarde de Navailles |
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Arnaud VIII (IX) Amanieu d'Albret |
Bernard-Aiz V (II) d'Albret |
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Mathe d'Armagnac |
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Marguerite de Bourbon |
Pierre I de Bourbon |
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Isabelle de Valois |