The Duchy of Brittany (Breton: Dugelezh Vreizh, French: Duché de Bretagne) was a medieval tribal and feudal state covering the Armorican peninsula west of Mont-Saint-Michel and north of Nantes/Naoned, including Rennes/Roazhon and Vannes/Gwened. It largely corresponded to the French region called Bretagne, historic Brittany, a region with strong traditions of independence,...
