Hexenagger castle probably was first built in the tenth century, as it is first mentioned in a record from the Monastery of St. Emmeram of Regensburg in 982. Originally, the Bavarian noble family of Muggenthaler resided in the castle. The castle was destroyed during the Thirty Years' War and rebuilt in the Baroque style. Since the extinction of the Hexenagger Muggerthaler family line, the castle has passed through several owners. One of the most notable owners was Elector Karl Albrecht, later Holy Roman Emperor Charles VII, who purchased the castle in 1724 as a gift for his mistress, Countess Maria Josepha von Morawitzky.
Today, the castle is privately owned by Eberhard Leichtfuß and his family. Mr. Leichtfuß is the sixth generation of the noble family von Weidenbach to inherit and live in the castle. The family supports the restoration of the castle by hosting events including summer medieval festivals, weddings, company events, and Christmas markets.
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.