938 - 987 (49 years)
| Guithenoc DE PORHOET, Viscount | |
| B: | 990 |
| Guillers, Brittany, (now France) | |
| D: | 1040 |
| Alluram | |
| B: | 994 |
| D: | Yes, date unknown |
| Judicael BRETAGNE | |
| B: | 984 |
| D: | 1037 |
| Robert I, "The Magnificent" DE NORMANDIE, Duke of Normandie | |
| B: | 22 Jun 1000 |
| Rouen, Duchy of Normandy | |
| D: | Yes, date unknown |
| Ermengarde ANJOU | |
| B: | 966 |
| D: | Aft 992 |
| Conan RENNES | |
| B: | 950 |
| D: | 992 |
| Folques ANJOU | |
| B: | Bef 1050 |
| D: | Yes, date unknown |
| Ermengarde ANJOU | |
| D: | 1076 |
| Folques ANJOU | |
| D: | 1040 |
| Geoffrey ANJOU | |
| B: | 938 |
| D: | 987 |
| Adelaide de VERMANDOIS | |
| D: | Aft 18 Oct 984 |
