San Pietro in Vinculis, Pisa

San Pietro in Vinculis is a Romanesque-style, Roman Catholic church in Pisa, region of Tuscany, Italy.

In the interior the intarsia pavement lies over a crypt with groin vaults and Roman capitals, perhaps the relic of an ancient market loggia later turned into a Christian temple.

It houses a Roman sarcophagus, remains of frescoes and a Crucifix on panel from the 13th century.

For years, the church kept a famous manuscript containing a digest of the Corpus Juris Civilis of Emperor Justinian I of the Eastern Roman Empire.

After Pisa fell in 1406, the Florence the document was transferred to the latter city.