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Male Guyomarch IV De Léon Click to view Guyomarch IV De Léon in the family tree

Guyomarch IV was born about 1140.  Guyomarch IV's father was Hervé II De Léon and his mother was Adelize D'aumale.  His paternal grandfather was Guyomarch III De Léon; his maternal grandparents were Etienne II D'aumale and Havoise De Mortemer. He had a half-brother named Robert IV.  He died in 1179.


Guyomarch IV's family with Nobilis De Tréguier

They had two sons and three daughters, named Guyomach V, Hervé Ier, Léonore, Ennoguen and Berthe.

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