“The Last Supper”, fresco (453 × 975 cm) by Andrea del Castagno, about 1447, preserved on the west wall of the refectory of the monastery of Sant'Apollonia in Florence, now the museum of the Cenacle of Sant'Apollonia. Detail of Saint Simon who covers his face with his hand in a disconsolate gesture almost to express the sadness of what is about to happen.
