Château de Saint-Aubin-du-Cormier

The Château de Saint-Aubin-du-Cormier is a castle with a rectangular layout surrounded by multiple defensive towers, of which only the foundation walls remain today. The structure reveals the typical design of a medieval fortification with its thick stone construction and tower bases.

Duke Peter I of Brittany built this fortress in 1225 as part of a strong defensive network along the coast. A few centuries later, it became the site of a major conflict that led the French crown to deliberately destroy it.

The ruins reveal how people in Brittany built their fortifications and where they fought important battles. The remaining walls and towers tell stories of when such castles protected the land.

The site is freely accessible year-round with no entrance fee, so you can explore the ruins at your own pace. The remaining walls are safe to view up close, though the ground is uneven in places and requires careful walking.

The fortress was the location of a decisive battle between rival Breton lords and French royal forces. After their victory, the French deliberately dismantled the stronghold to prevent any future rebellion from the region.

Location: Saint-Aubin-du-Cormier

Inception: 1225

GPS coordinates: 48.26125,-1.39399

Latest update: December 9, 2025 12:23