Trimburg is a hilltop castle in Lower Franconia, built by Gozzwin of Trimberg in 1135. Originally the castle was formed by three different sub-structures that came from different periods of time. The ruins preserved today are from the last time period.
The oldest part of the castle was named Leuchtenburg or Alte Burg. During the Peasant's War in 1525 the castle was captured and destroyed. Also during the Thirty Years' War, the castle suffered a new destruction. Afterwards the castle Trimburg was rebuilt from scratch with a new architectonical character of a palace.Through the fact that the surrounding country was in neediness of stones, it was partly deconstructed and the building material was used for building new houses in the towns.
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.