Kläckeberga Church was built in the early 13th century, but was subsequently burned by the Danes in 1611. Today, the interior of the church consists mostly of furnishings and objects from the 18th century and later.
The church originally had three floors: a cellar, main floor (the present church hall) and a larger hall above that. In addition, there was once a shooting attic above that hall. So Kläckeberga Church was also once a fortified church, surrounded by several earthwork walls and moats. Historical notes from the 15th century also indicate that various garrisons were stationed in this church during the many battles for Kalmar and Kalmar Castle.
Today the most significant artefact in the church is a altarpiece painted by Herman Han in 1616. It was transferred to Sweden as a loot from Poland during the Thirty Years War.
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.