Two Romanesque bells dominate the priory. Only the left gate remains of the Romanesque building's west façade, preceded by an avant-corps with a gate and a wide Flamboyant-style aperture (15C). The central nave testifies to the influence of Cluny (double side-aisles, double transept). Note the reliquary chest, its four wood panels portraying the life of St Mayeul and St Odilon. The Old Chapel, with its fine Flamboyant-style stone wall, and theNew Chapel house the tombs of the Bourbons.