In the 11th century there was wooden fort on the site of current castle, built by Robert Mesnières. It was demolished in the 15th century and the new Renaissaince castle was built in the early 1500s and inaugurated in 1546. It was influenced by famous castles of Loire valley.
In 1590 Château de Mesnières was moved to the possession of Fautereau family. Louis Fautereau enlarged and decorated the castle and built a new chapel. However after the Great Revolution it was used as a prison and later orphanage. The castle was badly damaged by fire in 2004. Today it is restored and open to the public.
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.