The "Monastery" is so named because until 1868, it was next to the convent of the Franciscan Friars Minor. It was built in 1586, at the behest of Prince Palagano Lucius II, with a single aisle. Then, with a subsequent action in 1700, it was added a second, and in 1898 a third. The façade is very simple, and has only two windows in the portal and central. In the interior, there are nine altars in the side stones and paintings depicting the Crucifixion. Moreover, in the aisles, there is the Pietà by an unknown author, the Providence and San Salvador from Orte by local artist Giacomo da San Vito.