Holsteinborg Castle was built by the Trolle family between 1598 and 1651, but has been owned by the Holstein family since 1707. The first count, Ulrich Adolph Holstein, established ten village schools on the estate in about 1710. The first Christmas tree in Denmark was lit at Holsteinborg in 1808, Northern Europe's first savings bank was opened in 1810 and Denmark's first health insurance was available in 1811. Between 1810 and 1825, a total of 14 schools and 12 handicraft schools were built on the estate. Hans Christian Andersen was inspired by his many visits to the castle, where he wrote some of his fairytales, stories, songs, poems and accounts of his travels.
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.