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