Medieval Town of Dubrovnik is medieval fortress in the area of Višnjica, Ilijaš municipality, Bosnia and Herzegovina. Although there are no precise data on the origin of the city, it is assumed that it was built in the 13th century because it was first mentioned in the Dubrovnik archives, on July 11, 1404.
It is believed that the town was named after the medieval merchants from Dubrovnik who came in that period with the approval of the Bosnian king to exploit the mines of lead, zinc, gold and other precious materials.
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.