Today in ruins, the castle of Coëtquen de Saint-Hélen, in the Côtes-d'Armor, benefits from an inscription in the Historic Monuments. Former 15th century fortified castle dismantled at the time of the League wars, at the time it only revealed a dungeon and a 17th century main building.
The building was partly demolished in the 1950s due to its obsolescence. On the outskirts of the castle, however, it is still possible to admire two bases of the 15th century towers.
