Chiesa di San Gregorio Nazianzeno

The church is located within the medieval complex that now houses the Chamber of Deputies and its construction is thought to date back to the late 8th century. The name derives from the fact that at first the saint's body was buried here; later, in 1580 and at the behest of Pope Gregory XIII, it was transferred to St Peter's except for one arm which, enclosed in a shrine, remained in the Campo Marzio monastery. In the 12th century, the bell tower was added, communicating with the church through a portal. Soon afterwards, the apse was decorated. The church has undergone numerous restorations, the most important of which took place in the early 18th century, in 1814, in 1945-49 (when the medieval decorations were brought to light) and between 1974 and 1989. The interior has a longitudinal plan, with a single nave and a barrel-vaulted roof. Above the entrance portal is the only window.