The castle was purposely dismantled in 1598 to prevent it from becoming a strategic asset for the rebellious Catholic League.
The ground plan is distinctively pentagonal, a rare layout for defensive castles of the period in this region.
It was constructed using local schist and sandstone, materials characteristic of the surrounding landscape.
The fortress served as the ancestral seat of the Tournemine family for several centuries.
Restoration work in the 21st century focused on preserving the existing ruins rather than reconstruction to maintain historical authenticity.
Hunaudaye Castle is a 13th-century fortress situated in the Arguenon valley in Plédéliac, Brittany. Built in 1220 by Olivier I Tournemine, the castle served as a defensive stronghold between the Penthièvre and Dinan regions. Its architecture features a pentagonal enclosure reinforced by five circular towers and a moat. The site survived the Wars of Religion, during which it was partially dismantled by order of the Parlement of Brittany in 1598. It has been classified as a Monument Historique since 1925. Modern restoration efforts have consolidated the masonry, allowing for safe public access to the ruins. Visitors can explore the remains via self-guided tours that utilize interpretive signage throughout the site. The castle remains a notable example of medieval military architecture in the Côtes-d'Armor department.
The main entrance bridge provides a comprehensive view of the moat and the primary fortified gatehouse.
Wear sturdy, comfortable walking shoes as the interior paths consist of uneven stone and packed earth.
Allow extra time to explore the surrounding nature trails in the Hunaudaye forest.
Bring a light jacket as the thick stone walls keep the interior spaces significantly cooler than the exterior temperature.
Assuming the site has full modern accessibility; due to its ruinous state, some areas involve steep stairs and uneven ground.
Closed during the winter months; seasonal operation typically runs from early spring through autumn.
Maintain caution near walls; do not climb on the masonry or cross marked safety barriers.
