| | N de Runefau de Coëtmen – Geoffroy III de Dinan –1260 | | |
| | Rolland II de Coëtmen 1230–1311 Alisse de La Roche Jagu 1240–1310 | | |
| | Constance de Kerouzéré 1280–1330 Guillaume II de Penhoët 1280–1328 | | |
| | Yvon de Kerouzéré 1255–1310 | | |
| | Alain de Coëtmen 1200–1260 | | |
| | Marie Alix de Tonquédec –1231 Geslin de Penthièvre de Coëtmen 1156–1239 | | |