Château des Ducs de Bretagne

The Château des Ducs de Bretagne is Nantes’ most important historic building, located in the city’s historic heart alongside the Cathedral St. Pierre. Originally built in 1207 by Guy of Thouars and rebuilt in 1466 by Francis II, the last Duke of independent Brittany, it served as both a military fortress and a ducal residence. Duchess Anne of Brittany continued the work, adding sculptural decorations and Renaissance elements, such as the "Golden Crown" tower. After Brittany joined France in 1532, the castle served various roles, including as a royal residence, military barracks, arsenal, and prison.

The exterior features a fortress with 500 meters of curtain walls, seven towers, and a sentry walkway, constructed from granite blocks and schist. The interior showcases an elegant 15th-century ducal residence made of tufa stone in the flamboyant Gothic style, with early Renaissance influences. The site is owned by the Ville de Nantes and is restored and open to the public.

General opening hours are from 8:30 am to 8:00 pm. The courtyard and fortification walls are accessible for free on Tuesdays. The museum houses the Memorial to the Abolition of Slavery and hosts current exhibitions, such as "Expression(s) décoloniale(s) #4," running from May 8 to November 8, 2026. The site offers self-guided and guided tours, with facilities for disabled visitors. This landmark provides a comprehensive insight into the history of Brittany and Nantes, serving as a key cultural destination in the Pays de la Loire region.