In 1736, Philipp Karl von Eltz-Kempenich (1665–1743), the Archchancellor of the Holy Roman Empire and Prince-Archbishop of Mainz, purchased a Vukovar manor in Syrmia, in the eastern Kingdom of Slavonia, then part of the Habsburg Monarchy ruled by Emperor Charles VI. The palace was originally built between 1749 and 1751 by the Archchancellor's descendants of the German Catholic noble House of Eltz and was gradually extended over time. The estates near the Military Frontier were, however, exposed to raids by Ottoman troops and local Hajduk paramilitary forces.
After the Yugoslav Partisans gained control over the country in late World War II, the manor was confiscated by the communist administration of Yugoslavia in 1944, and the family of Jakob Graf zu Eltz was forced to leave Vukovar. In 1990, he returned from Eltville to the newly established state of Croatia and became a member of the Sabor parliament at Zagreb. Eltz Manor, however, suffered a great deal of damage during the Croatian War of Independence, when it was bombarded by the Yugoslav People's Army during the Battle of Vukovar. However, after four years of restorations, it was completely restored to its pre-war appearance in October 2011.
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.