 The cathedral was integrated into the town's fortifications in 1692, when the bell tower was crenellated for use as a defensive tower.The choir is richly decorated.The furnishings and works of art, including an "Assumption" of c. 1630 and a "Gift of the Rosary" of 1631 forming part of the altar, both by François Mimault, and a portrait of the bishop Jean-Baptiste de Belloy, are mostly of the 17th and early 18th centuries.