Via dei santi Quattro, 20
Opening Hours: 9:00 am to 12:30; 3:30 to 5:30pm
During the 12th century it was probably used as a defence for the Basilica of St. John lateran, hence it’s a fort-like structure. The church is dedicated to the four Roman soldiers, Severus, Severian, Carpophoros and Victorine, who had refused to worship the statue of Aesculapius, and to the five sculptures who had declined to carve it. Traces of the primitive church can been seen in the apse.
The bell tower probably dates from the 9th century. Worth of visit are the Oratorio di san Silvestro, the chapel in the courtyard to be entered just by ringing the nuns, with its charming 13th century frescoes; and the medieval cloister