Duchy of Brittany
- Ruling Houses
-
House of Porhoët
Eudon II de Porhoët -
House of Dreux-Penthièvre
Jeanne of Penthièvre
With Charles of Blois -
House of Blois-Châtillon
Charles of Blois
With Jeanne of Penthièvre
- Counties
- Viscounties
- Lordships