| | Geoffrey Viscompte de Porhoet …–1141 | | |
Conan III Duke of Brittany …–… | | |
| | AlainIV Fergant Duke of Brittany …–1119 Ermengarde of Anjou …–1147 | | |
| | Hoel Duke of Brittany …–1084 Havoise of Brittany …–1072 | | |
| | Alain Caignhart Count of Cornouaille …–1058 | | | | Judicael Count of Nantes 970–1037 | | | | | | | | AlainII Barbetorte Duke of Brittany …–952 | | | | Matuedoi Count of Poher 897–930 |
| | | Theobald Vicompte of Troyes …–904 | | |
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| | | HughIII Count Maine …–1015 | | | | HughII Count of Maine …–992 | | | | HughI Count of Maine …–939 | | |
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| | | Benoit Count and Bishop of Cornouaille …–… Guinodeon of Prorhoet …–… | | | | Budic Count of Cornouaille …–… |
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