St. Stephan's Church is built on the most eastern of the seven hills. It has been Bamberg's most important protestant church since 1807.
The original building, which was probably donated by empress Kunigunde, was erected at the same time as Heinrich's Cathedral and was consecrated by Pope Benedict VIII in 1020. Today's church was constructed in two phases in the 17th century and is based on a Greek cross. The choir, built by Giovanni Bonalino in 1628/29, includes elements of the baroque, neo-gothic style. The three other naves, for which Antonio Petrini was responsible, reflect a baroque style, strongly influenced by the renaissance. The works of art span the baroque period to the present day.
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.