A Renaissance power address beside Campo de' Fiori
The palace began rising around 1485 for Cardinal Raffaele Riario, nephew of Pope Sixtus IV, on an earlier core linked to Pope Damasus. Its pale travertine face stretches along one of central Rome's busiest historic pockets, yet the building keeps a formal calm that feels almost deliberate. It announces power by refusing to shout.
Bramante's courtyard and Vasari's fast room
Step through the 16th-century portal by Domenico Fontana and the palace opens into a three-order courtyard attributed to Bramante. Upstairs, the famous Salone dei Cento Giorni carries Giorgio Vasari's frescoes, named for the speed of their execution. The contrast is memorable: measured architecture below, urgent painted theatre above.
A church, tribunals, and a palace in one block
The ancient church of San Lorenzo in Damaso was rebuilt into the palace block, and the building later became the seat of the Apostolic Chancery. Today it still carries a working institutional life through the Apostolic Penitentiary, the Apostolic Signatura, and the Roman Rota. That is why the visitor experience feels partial: the palace is historic, but it is not retired.
The Roman layer under the Renaissance shell
Below the palace, the mood changes completely. The submerged tomb of Aulus Hirtius, an ally of Julius Caesar killed in 43 BC, sits in water from the ancient Euripus canal, a drain that once carried water from the Baths of Agrippa toward the Tiber. It is the kind of Roman detail that makes a short stop suddenly feel deep.