The first castle is mentioned in 1259 as held by all three co-lords of the family of Xaintrailles. It was built in the early thirteenth century and medieval remains backyard, the keep and embankment of the south and west walls.
Jean Poton of Xaintrailles, companion of Joan of Arc, who died in 1461, and his successors Bernard Lamothe, and Antoine de Chamborel, governors Casteljaloux, realize constructions in the fifteenth century: two towers and the body of northern home. In the sixteenth century are added turrets on mistaken in range of the south elevation and ditches and a drawbridge are mentioned in 1539. In 1570 the castle passed to Montesquiou and the Lau of Lusignan in 1724.
1780 Armand de Lau, Marquis de Lusignan, is close gaps and create access from the west. In 1824, the northeast collapse in 1843 and the pieces keep is partially restored on project Gustave Bourières, architect of the department.
The oldest part of the castle is the tower of the thirteenth century pierced windows in the fifteenth century. The body of the house north of the fifteenth century has a square floor and two floors of height and a hipped roof and long tails covered with flat tiles. It has as the dungeon, an appetizer staircase. The south building one floor and attic and turrets is redeveloped (kitchens). The west wing is framed by two towers.
The staircase in the hallway and U have been built in the eighteenth century.
