Founded in the eighth century, the Abbey was favored by Charlemagne and blessed by the Popes. In the 11th century, it saw considerable growth and became one of the most important abbeys in the south of France. Its influence extended from the Albigensian region to Saragossa.
After the turmoil of the Hundred Years War, the Abbey experienced a spiritual, intellectual and architectural revival with the construction of the new abbatial palace.
In 1792, despite the support of the population, the Revolution persecuted believers. The Abbey was plundered, ransacked and split into two parts.
In the 19th and 20th centuries, two religious communities successively occupied the buildings: Les Soeurs de Notre-Dame des Sept-Douleurs (The Sisters of Our Lady of Seven Sorrows) and La Théophanie (The Theophany).
In 2004, the Canons revived the Abbey, and all buildings underwent renovation. The support of donors and benefactors is essential to continue the costly works and preserve this historical site.