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

Guyomach VI was born about 1202.  Guyomach VI's father was Conan Le Bref De Léon and his mother was Alix Ière De Penthièvre.  His paternal grandparents were Guyomach V De Léon and Margilie De Rohan; his maternal grandparents were Henry Ier De Tréguier and Mahaut De Vendôme.  He was an only child.  He died in 1239.


Guyomach VI's family

He had a biological son named Hervé III.

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