St Stephen of the Abyssinians is a Roman Catholic church located in Vatican City. The church dedicated to Stephen the Protomartyr is the national church of Ethiopia. The liturgy is celebrated according to the Alexandrian rite of the Ethiopian Catholic Church. It is one of the only standing structures in the Vatican to survive the destruction of old St. Peter's basilica, and thus it is the oldest surviving church in Vatican City.
The church was, by tradition, built by Pope Leo I (ca. 400-461). It was rebuilt in 1159 under Pope Alexander III, who also built a monastery for Ethiopian monks next to it.
In 1479, Pope Sixtus IV restored the church and assigned it to the Coptic monks in the city. It was at this time that the name was changed to reflect that it was served by Ethiopians (Abyssinian). It was altered under Pope Gregory XI (1700-1721), and again in 1928.
The façade is in the style of the early 18th century. The 12th century doorway, decorated with the Lamb and the Cross, has been preserved. The church has a single nave with ancient columns along the sides. The most important work of art is a fresco of the Madonna with Child in the Roman style from the 15th century.
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.