The Château du Bois de Sanzay is located in Saint-Martin-de-Sanzay, between Thouars and Saumur. According to documents of the Saint Laon de Thouars abbey, in 1487 the land was bought from the clergy by François de Beaumont, chevalier Seigneur du Boys de Sanzay. The central building was built in the 15th century, and additions were made in the 18th century.
Built using large blocks of tufa stone for some parts and rubble for other parts, the main building has high chimneys, three monumental gothic fireplaces, an échauguette, a chapel, and cellars. The domain also comprises a dovecote, a French formal garden, and a pond.
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.