Guillaume was born about 1340, the son of Guillaume de Courceriers and Jeanne de Laval-Châtillon. The place is not known.
His wife was Jeanne d'Avaugour. They were married, but the date and place have not been found. Their only known child was Isabeau (c1365-?).
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Guillaume de Courceriers |
Guillaume de Courceriers |
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Jeanne de Laval-Châtillon |
André de Laval-Châtillon |
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Eustachie de Bauçay |
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| Event | Date | Details | Source | Multimedia | Notes |
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| Birth | ABT 1340 |
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