Henry II D'Avagour 1205–1281 Marguerite de Mayenne 1210–1249 | | |
Nobilis … of Penthievre 1151–1208 Guyomarch VI de Leon …–1179 | | |
| | Alan I … of Penthievre 1151–1212 Petronille de Beaumont 1170–1216 | | |
| | Henry I de Treguier 1100–1183 | | | | Stephen I … of Brittany 1064–1135 Hawise de Guincamp 1066–… | | | | Eudes … of Brittany 999–1079 | | | | Geoffrey I … of Rennes, Duke of Brittany (992-1008) 980–1008 Hawise … of Normandy 977–1034 | | | | Conan I … of Rennes, Duke of Brittany (958-992) 927–992 Ermengarde … of Anjou, Duchess of Brittany (952-992) 932–982 | | |
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