Former Benedictine abbey whose origins date back to 1093, the date when monks settled in this place called 'Casale Malanum'. This name will also give birth in the 15th century to the Casalian congregation, which will bring together a certain number of abbeys of men and women in the region.
The building suffered destruction and damage on several occasions, notably during the Hundred Years' War and the Revolution.
Overall, only the nave and the broken cradle currently remain.
The facade probably dates from the beginning of the 12th century and has beautiful fluted piastres around the door.