The interior of the church was changed in the later 18th century, in French Neoclassical style. created the stucco designs. He added Corithian columns, a Neoclassical sill and covered the Gothic vaulting rib with stucco garlands. Walls and ceiling were covered by white and yellow stucco. Stucco reliefs show scenes from the life of Jesus (nave) and from the life of Bernard of Clairvaux (choir). Oil paintings on the walls of the side aisles show saints or beatified members of the Cistercian order.