Built at the end of the 11th century by Roger III de Tosny, Lord of Conches.
The thickness of the walls is 2.60m. The walls and window embrasures were coated with a layer of mortar mixed with lime and fine sand in order to give a more noble appearance to this flint construction.
On the ground floor: it was the food reserve, there were no windows.
1st floor: A central well was used to supply the Château with drinking water. It was emptied in 1849. A fireplace was in each room.
It was around 1417, when Conches was in English hands, that the defensive power of the keep was increased under the orders of Captal de Buch. He built an additional tower with the particularity of starting on a square base.
Main seats of the castle:
1093: War of the Beautiful Ladies (fight between the Lords of Tosny and the Lords of Breteuil, Beaumont and Evreux)
1199: Philippe Auguste is king of France and he makes the domain of Conches available to his cousin Robert de Courtenay in 1202.
1364: first English occupation.
1371: 100 years war, Bertrand Dugesclin, captain of King Charles V, seizes Conches.
1420: Conquest of Normandy by the English, Henry V, King of England seizes Conches. The castle was taken over in 1440 by Charles VII, King of France.
1441: New English occupation.
1449: The French under the command of Robert de Floques, bailiff of Evreux storm the town of Conches.