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Male Guyomach V De Léon Click to view Guyomach V De Léon in the family tree

Guyomach V was born about 1165.  Guyomach V's father was Guyomarch IV De Léon and his mother was Nobilis De Tréguier.  His paternal grandparents were Hervé II De Léon and Adelize D'aumale; his maternal grandparents were Henry Ier De Tréguier and Mahaut De Vendôme. He had a brother and three sisters, named Hervé Ier, Léonore, Ennoguen and Berthe.  He was the oldest of the five children.  He died in 1208.


Guyomach V's family with Margilie De Rohan

‌Guyomach V and Margilie were married in a religious ceremony about 1175.  They had a son named Conan Le Bref.

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