Santi Quattro Coronati is an ancient titular and conventual minor basilica and Augustinian convent in Rome, Italy.

The complex of the basilica with its two courtyards, the fortified Cardinal Palace with the Saint Silvester Chapel, and the monastery with its cosmatesque cloister is built in a silent and green part of Rome, between the Colosseum and San Giovanni in Laterano.

The bodies of the martyrs were buried in the cemetery of Santi Marcellino e Pietro, on the fourth mile of via Labicana, by Pope Miltiades and St Sebastian (whose skull is preserved in the church).

Once the building became an orphanage, the Augustinian nuns put a revolving drum by its entrance which was used as a deposit "box" for unwanted babies.

The second courtyard holds the entrance to the Oratorio di San Silvestro, with frescoes of medieval origin, as well as others by Raffaellino da Reggio.

The full list is known only from the pontificate of Pope Benedict XII (1334–1342):[1][2][3] In 2002 art historian Andreina Draghi discovered an amazing display of frescoes, dating back to 13th century, while restoring the Gothic Hall of the monastery.

Most of the scenes were well preserved under a thick layer of plaster, and represented the Twelve Months, the Liberal Arts, the Four Seasons and the Zodiac.

The image of King Solomon, a pious and a judge, painted on the northern wall led scholars to argue the room was meant to be a Hall of Justice.