Santi Quattro Coronati
(Four Crowned Martyrs) is an ancient basilica in Rome. The church dates back to the 4th (or 5th) century, but rebuilt in the 12th century, located on the summit of the Coelian Hill, between the Colosseum and St. John in Lateran. The dedication is to four anonymous saints and martyrs.
For reference, a plan of the church is available here
Tradition holds the first church was begun by Pope Miltiades, in the 4th century. This church, however, was burned to the ground by Robert Guiscard's troops during the Norman Sack of Rome (1084). Pope Paschal II (1099-1118) rebuilding a smaller basilica, using what was left of the walls.
In 1247, the chapel of St Sylvester, was consecrated. The chapel contains frescoes depicting the stories of Pope Silvester I and Emperor Constantine I.
When the Popes moved to Avignon (14th century), the basilica fell into ruin. Upon the return of the Popes to Rome, Card. Alfonso Carillo sponsored a new restoration on the basilica, in the time of Martin V (1430), as is recorded by an inscription in its inner vestibule. In 1560, Pope Pius IV entrusted the basilica and the surrounding buildings to the Augustinian nuns as an orphanage for girls.
In the year after 1913 the city supervised a thorough restoration of the church and monastery by the Fine Arts Superintendent Antonio Muñoz.