In 1104, the regular canons of St Augustine took possession of an abbey housing the relics of St Volusien. It was then that the construction of a large church with three naves and a transept was undertaken. In the 14th century, the Romanesque apse was replaced by a new polygonal chancel. The building was destroyed during the religious wars and the relics were burned. Reconstruction work was begun in 1609 and completed in 1670. The portal and the base of the walls of the nave are the main remnants of the medieval church.