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Male Conan Ier De La Roche-Derrien Click to view Conan Ier De La Roche-Derrien in the family tree

Conan Ier was born in 1160.  Conan Ier's father was Henry Ier De Tréguier and his mother was Mahaut De Vendôme.  His paternal grandparents were Etienne Ier De Penthièvre and Havoise De Guinguamp; his maternal grandparents were Jean Ier De Preuilly and Berthe Du Puy Du Faou. He had two brothers and two sisters, named Alain Ier, Geslin, Nobilis and Alix Ière.  He was the second youngest of the five children.  He died at the age of 42 in 1202.


Conan Ier's family

He had two biological daughters named Mahaut and Plaisou.

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