938 - 987 (49 years)
| 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 |
| Geoffrey ANJOU 938-987 |
| Geoffrey ANJOU | |
| B: | 938 |
| D: | 987 |
| Adelaide DE VERMANDOIS | |
| D: | 984 |
