The church was rebuilt at the end of the 12th century after the destruction of the town in 1168 by King Henry II of England . Only the chancel reveals any vestiges of this original structure. The vaulting of the false transept and the enlargement of the chancel were carried out in the following century. At the end of the 14th century , the knight and constable Olivier V de Clisson and his second wife, Marguerite de Rohan, had the south apse transformed into an oratory and private chapel . The nave and south aisle were built between 1461 and 1470 by Lord Jean II de Rohan , while the north aisle was completed in 1491, at which time a square tower was erected in the center of the north aisle. This tower contained a strongroom. In 1705, the upper part of the tower collapsed. During the repair work, a bell tower was placed on top between 1731 and 1734.
