The ancient basilica of Santi Quattro Coronati is dedicated to four unnamed saints, all martyred. The name means “four crowned saints,” meaning they were martyrs.
The church was first built in the 6th century, but mostly destroyed in the 11th century. The rebuilt church was much smaller, preserving the original apse. In the 13th century, the Chapel of San Silvestro and a cloister were added – the former decorated with frescoes, and the latter with intricate inlaid stonework designs. The four saints to whom the church is dedicated are buried in tombs in the crypt.