966 - Aft 992 (27 years)
 | Josselin DE PORHOET 1025-1074 |
| Josselin DE PORHOET | |
| B: | 1025 |
| D: | 1074 |
| Guithenoc DE PORHOET, Viscount 990-1040 |
| Guithenoc DE PORHOET, Viscount | |
| B: | 990 |
| D: | 1040 |
| Alluram 994-Yes, date unknown |
| Alluram | |
| B: | 994 |
| D: | Yes, date unknown |
| Judicael BRETAGNE -1037 |
| Judicael BRETAGNE | |
| D: | 1037 |
|
| Ermengarde ANJOU 966-Aft 992 |
| Ermengarde ANJOU | |
| B: | 966 |
| D: | Aft 992 |
| Conan RENNES 950-992 |
| Conan RENNES | |
| B: | 950 |
| D: | 992 |
