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