Le Bas-Plessis was originally an ancient fiefdom and lordship under the jurisdiction of Montrevault. In the 15th century, it belonged to the Chenu family, who obtained it through the marriage between the knight Pierre Chenu and Jeanne Bérard, lady of Bas-Plessis, the daughter of Jean Bérard and Gervaise de Marigny.
Pierre Chenu, a knight of the Order of the King, obtained on December 23, 1602, the right to establish the land as a chatelain with the right of provostship, seal, measurement, baking oven, and mill. This right was granted to him by his suzerain, Charles Turpin, Count of Montrevault.
On November 2, 1666, François de Villoutreys and his wife, Renée Chenu, took possession of it.
During the Vendée War, the castle provided refuge to the wounded Lescure. In 1794, the feudal castle was set on fire during a battle, and only two towers remained, bordering the current pond. The castle was rebuilt in a neo-classical style in 1845 and expanded with a wing in 1875 to house the library of the Marquis de Villoutreys.
The remains of the medieval castle consist of two round towers with conical slate roofs. The first floor of the north tower serves as a chapel. A curtain wall connects these two towers. These are the parts that are listed as historical monuments.
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.