The Château de la Motte-Glain was built by Pierre de Rohan-Gié in 1495 on the site of an older fortress belonging to the lords of Rougé. Anne of Brittany and Charles VIII stayed there in 1497 and Charles IX and Catherine de' Medici in 1565. It was bought in 1635 by par Michel Le Loup, counsellor to the Parlement of Brittany. The castle was modified by Pierre de Rohan-Gié in the 17th century.
The castle includes a gatehouse composed of a central pavilion flanked by two round towers, some ruined buildings (including a storeroom and a press), a residence decorated with Renaissance windows from the 15th century. The chapel contains a fresco from the 16th century.
The castle is privately owned. Parts of it (gatehouse, storeroom, press, chapel, residence, bay, roof, wall) have been listed since 1926 and protected since 1929 as a monument historique by the French Ministry of Culture. It is open to the public in the summer months.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.