Schattenburg castle was mentioned in the chronicle by the monks Ortlieb and Berthold in 1138. Muntifurt Castle, mentioned in the first half of the 12th century, may have housed vassals of the Earl of Bregenz, who ruled over the area at the time. At his coming to power (1182) the Earl Hugo I, the grandson of the last Earl of Bregenz Rudolf (1150), repositioned his residence to Feldkirch Castle, important for reasons of power politics and the control of traffic.
For 200 years, the Castle remained the property of the Earls of Montfort. Upon the death of the last of the Montforts, Rudolf IV (1390), the castle and the power that came with it passed to the Habsburgs. The Habsburgs ruled the estate through governors who lived in the Castle until 1773.
Only from 1416 until 1436 was their rule briefly interrupted, when it came into the hands of the Earls of Toggenburg. Duke Friedrich of Austria’s help in the flight of the antipope Johannes XIII turned out to be fatal for him. Not only was he outlawed in the name of the Emperor and excommunicated, he also lost all is possessions, among which Feldkirch. In 1825 the City bought the partially ruined Castle from the state for 833 Guilders. Today Schattenburg is a museum.
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.