At the top of a promontory overlooking the village of Saint-Sauvant, the Saint-Sylvain church dates mainly from the twelfth century. Despite its strategic position, it has few traces of fortifications: only the stair tower, part of the nave and the bell tower seem to have been strengthened, probably during the Hundred Years War

Created in Saintongeais Romanesque style it is distinguished by a series of Lombard-inspired arches, surmounted by diamond tips, as well as a diversity of modillons with animals, fantastic beasts and human masks.