Geoffroy was the son of Jean II de Beaumont-Brienne and Marguerite de Poitiers. The date and place of his birth have not been found.
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Jean II de Beaumont-Brienne |
Robert de Beaumont-Brienne |
Jean de Beaumont-Brienne |
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Jeanne de la Guerche |
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Marie de Craon |
Maurice VI de Craon |
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Mahaut de Mechelen |
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Marguerite de Poitiers |
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