Among the artworks inside the church are ceiling frescoes, paintings and altarpieces by Luca Cambiaso, Federico Barocci, Lazzaro Tavarone and Gaetano Previati, while sculpture include works by Domenico Gagini, Andrea Sansovino, Giacomo and Guglielmo Della Porta. Impressive are also the works of art and silverware kept in the Museum of the Treasury which lies under the cathedral. One of the most important pieces is the Sacred bowl brought by Guglielmo Embriaco after the conquest of Cesarea and supposed to be the chalice used by Christ during the Last Supper.« less