Fortified village and its church of the thirteenth century fortified itself.
Montjoie-en-Couserans could be derived from Mons Jovis, " Mount of Jupiter." The Gauls worshiped their ancestors and if he was a king or hero, he became a demigod and his descendants made him a cult. For his powers act better, it was useful to have his tomb was venerated, and where the Celts were spending the night to collect his oracles. They associèrent the worship of a god to worship of an ancient tumulus, and this is what must take place Lendit. This divine ancestor is unknown but it may be noted that it is possible that this god was assimilated to Jupiter because the place was called Mons Jovis, " Mount of Jupiter."