- Deceased before 1231
Parents
- Guyomarch V de Léon, alias Guyomarch le Fort ( - c. 1210), chevalier, vicomte de Léon
- Margelie de Poher
Family
- Married with Alix d'Avaugour, issuing
- Guyomarch VI ( - 1238)
- Isabeau
Occupations
- prisonnier au château de Chinon (1202 - 1205)