Isabelle was the daughter of Guillaume II de Montigny and Philippine de Bourrot. The date and place of her birth have not been found.
She had two marriages/partners. Her first husband was Jean de Magnelay. They were married, but the date and place have not been found. Their only known child was Raoul II (c1380-?).
Her second husband was Hugues VII du Bellay, who she married in ABT 1385. The place has not been found. Their six known children were Jean III (?-1480), Jeanne (c1390->1465), Jean IV (?-1481), Philippe (?-1455), Jean (c1400-1479) and Catherine (?-?).
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Guillaume II de Montigny |
Guillaume I de Montigny |
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Haliquant de Bourrot |
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Macée dite Freslonne de Fains |