| | Emma … of Brittany 1025–… Ivo de St. Saveur 1026–1059 | | |
| | Alan III … Duke of Brittany 997–1040 Berthe … of Bloise 990–1085 | | |
| | Eudes … of Brittany 999–1079 | | |
| | Geoffrey I … of Rennes, Duke of Brittany (992-1008) 980–1008 Hawise … of Normandy 977–1034 | | |
Judith … of Brittany 982–1017 Richard II … Duke of Normandy (996-1027) 963–1027 | | |
Esmerelda … Countess of Porhoet …–1037 | | |
| | Conan I … of Rennes, Duke of Brittany (958-992) 927–992 Ermengarde … of Anjou, Duchess of Brittany (952-992) 932–982 | | |
Mien de Fourgeres 940–1020 | | |
| | Judicael Berengar Count of Rennes …–979 Gerberge de Bretagne 911–988 | | |
| | | | | | King of Brittany (876-907) Alain I … of Vannes …–907 | | | | Ridoredh … Count of Vannes …–… |
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