The oldest parts of Vickleby church date from the mid-1100s. the tower, also built for defensive purposes, was completed around 1200. Vickleby church (as well as other churches nearby) were heavily damaged by Danish army in 1677. The eastern part and apsis were rebuilt in 1778.
The interior date mainly from the 18th century, like the altar (1778) and pulpit (1763). The stone-made babtismal font was made for the original church in the late 1100s.
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.