Sant'Agata dei Goti is dedicated to the martyr Saint Agatha. The church was built by Ricimer for the Goths c. 460. The Goths were Arians, so when Arianism was suppressed in Rome, the building was taken over by the Catholic Church, in 592 or 593, and reconsecrated by Pope Gregory the Great. It was restored in the 9th century, and a Benedictine monastery was founded next to it. The apse of the church collapsed in 1589, and it was partially rebuilt in 1633, without major changes to the building itself apart from the new apse. The small courtyard outside the church was laid out at this time.
The church has been served by the Stigmatines since 1926. Their generalate is adjacent to it. It is the only Arian church that has been preserved in Rome.
The façade was rebuilt by Francesco Ferrari in 1729. The relief above the door shows St. Agatha holding her severed breast on a plate; her torturers severed her breasts when she refused to renounce her faith in Christ.
The entrance from Via Mazzarino opens on a 17th-century courtyard. The Romanesque campanile was built in the 12th century.
Although it was redecorated in the Baroque style and has some 19th-century additions, it is still possible to see traces of the 5th-century plan, which was a basilica with three naves. The granite columns separating the naves are ancient.
The fresco in the apse shows the Glory of St Agatha, made by Paolo Gismondi in the 17th century. There is a 12th- or 13th-century canopy above the altar, reassembled and erected here in 1933. It has four columns of pavonazzetto marble, all decorated with Cosmatesque mosaic, and a temple roof. The former canopy was destroyed in 1589; fragments can be seen in the ceiling of the main chapel on the left-hand side.
The 15th-century Cosmatesque pavement in the middle of the nave has an unusual, but very nice, design. It is a very late example of the style. The rectangular windows were installed in the 17th century at the request of the Cardinals Francesco and Antonio Barberini. By the altar of St Agatha is a large statue of the saint.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.