Established around 1157, Burg Güssing is the oldest castle in Burgenland. In 1524, Francis I, Batthyány (1497–1566) received it and the associated lands. The family still retains ownership.
Times changed and due to the modernization of warfare, the castle and fortress of Güssing slowly lost its strategic importance. In 1777 all guns were removed. Due to the high cost of maintenance and the introduced “roof tax” by empress Maria Theresia, there was a partial demolition of some of the castles fortifications.
In 1870 Prince Philipp Batthyány-Strattmann established a foundation for the preservation of the castle and monastery as an historic structure. However, in the years following World War I, foundation had lost most of its money due to inflation and the costs of war.
Today, the castle acts as a tourist attraction in addition to being an important historical structure. Theater performances, concerts and readings can be attended on the castle grounds during the summer months, and there is a family museum located within.
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.