Château de La Roche-Maurice, constructed between the 13th and 15th centuries, ranks among the oldest fortresses in Finistère, Brittany. Built on a dramatic rocky outcrop 70 meters above sea level by Morvan, Viscount of Cornouaille, the fortress strategically dominated the Élorn valley. Partially dismantled in 1489 following the Franco-Breton War, it was later repurposed as a prison and stone quarry before becoming a classified historical monument in 1926. Today, the ruins reveal the complexity of medieval military engineering: square dungeon, successive enclosures, and sophisticated defensive systems. Owned by the Conseil départemental du Finistère since 1986, the site features an educational pathway with medieval life reconstructions and artifacts from excavations conducted 2001-2010.
