It was consecrated in 1133 but previously it had been already used as the seat of the most important notary act of the Pisan commune. It was built in a Pisane-Romanesque style in stone. The façade is divided in three parts divided by pilaster strips, with a mullioned window and arches in the upper part which continues on the whole exterior. Notable is the typical local decoration with Islamic ceramic basins (bacini) from the 10th-11th centuries (copies; the original are in the Museum of St. Matthew in the city).
Interior
The interior has a nave and two aisles, divided by columns with ancient Roman capitals, with hut-shaped ceiling. It houses also an Arabic tombstone, the copy of a 14th-century Madonna with Child and the rudder of a Pisane galley (13th-14th centuries).
