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Male Guy XII de LAVAL Click to view Guy XII de LAVAL in the family tree

Guy XII's father was Guy X de LAVAL and his mother was Beatrix de BRETAGNE.  His paternal grandparents were Guy IX de LAVAL and Beatrix de GAVRE; his maternal grandparents were Arthur II Duke de BRETAGNE and Yolande Comtesse de MONTFORTde DREUX.  He was an only child.  He died on April 21st, 1412.1 


Guy XII's family with Jeanne de LAVAL

They had a daughter named Anne Dame de Montmorency.

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