Dallund is first mentioned in 1340 and was in the possession of the Bryske family until 1614 and later, from 1792 to 1915, by the Blixen-Finecke family.
The east and north wings of the main building were originally built in about 1540. The staircase tower dates from an extension of the north wing in 1634 and the east wing was altered in about 1723. The two east facing lateral wings were designed by Niels Sigfred Nebelong and built in 1849.
The listed main building and the garden are owned by a self-owning institution under the municipalities on Funen. It houses the Dallund Rehabilitation Centre, a project under the Danish Cancer Foundation.
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.