According to tradition, the Irish bishop Kilian were killed with his fellows at the site of today Neumünster church. Bishop Megingoz built the first church on the site as a memorial for martyrs in the 8th century.
The next church was built around 1060 and renewed in 1250. The current Baroque appearance dates from the 18th century (1711-1722). In World War II the church was partly destroyed and restored later.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.