The fine Renaissance frescoed cycle, ascribed to Bonifacio Bembo, represents – among other subjects – St. George and the Dragon, the Last Supper, the Crucifixion. It was ordered around 1460 by Carlo Pallavicino, bishop of Lodi and feudal Lord in Monticelli.Guided tours (min. 15 people) for groups only, all year round, upon reservation. No supplements needed.The entrance ticket allows visitors to enter the other museums inside the fortress (Aquarium and Ethnological Museum of Po River).