San Pietro in Vincoli ([sam ˈpjɛːtro iɱ ˈviŋkoli]; Saint Peter in Chains) is a Roman Catholic titular church and minor basilica in Rome, Italy.

The Empress Eudoxia (wife of Emperor Valentinian III), who received them as a gift from her mother, Aelia Eudocia, presented the chains to Pope Leo I.

[6] Around the world, numerous churches to St Peter bear the Ad Vincula suffix, relating to the basilica and relic.

The aisles are surmounted by cross-vaults, while the nave has an 18th-century coffered ceiling, frescoed in the centre by Giovanni Battista Parodi, portraying the Miracle of the Chains (1706).

In this scene, based purely on a fable, Pope Alexander heals the neck goiter of the mythical Saint Balbina by touching her with the chains that had once bound St Peter.

This kind of iconographic symbolism was common in early sacred art, and for an artist horns are easier to sculpt than rays of light.

[7] Inside a portico at the entrance is the original sculpture When I was Naked, created by Canadian artist Timothy Schmalz as part of the Matthew 25 collection installed throughout Rome on the occasion of the Extraordinary Jubilee of Mercy.

As a symbol of the subsequently reinforced relationship between Pavia and Rome, an identical altar to Sebastian was built at the Roman church of the same name, resulting in a parallel cult for the saint in both regions.