Sztum Castle was built between 1326-1331. It functioned as a bridge-head protection the Malbork fortress from the South. At that time a stone and brick wall with a gate and one or possibly two corner towers surrounded the territory of the castle hill.
The extension of the castle complex carried out in the 14th century was commenced starting from the southern and eastern wings. The wing that functioned as a summer residence of Grand Master was built in the years 1416-1418 at the Western wing. Not considering shorter breaks, the castle in Sztum was under the control of the Teutonic Knights" Order until 1466 when it had to be passed to Poland in consequence of the Torurn Peace Treaty and became the residence of Polish starosts for many year. In the period 1530-1624 the castle was considerably redesigned, which consisted mainly in constructing new charring buildings on the castle grounds.
The castle was destroyed after the Swedish invasion and rebuilt in the years 1660-1664. As a result of the next destruction after the fire of the city in 1683 and the third PolishSwedish war, all the roofs of the castle towers were burnt apart from the one covering the gate tower.In 1772 Sztum found itself again under the German control and the castle became the seat of the Prussian Treasury Management and since the beginning of the 19th century the location of the District Court. After 1776 and in the years 1812, 1819, 1864-1866 and 1899 a systematic demolition of the castle wall and the rebuilding of the wings was the case.
The overhaul works were significantly limited in 1929 when only ruined parts were renovated and the entrance gate was partly reconstructed. After 1945 District Court found its location in a preserved, 19th century part of the castle, whereas the southern wing was divided in flats.
The Historic Museum of Powisle situated in the southern wing in 1968 was closed at the beginning of the 80"s because of the overhaul works undertaken in the southern part of the castle The said have not been finished until present day. The council of the city and commune of Sztum adopted a resolution to develop and manage the area of the Castle Hill. Nowadays, historic dances, staging some events, archery, cross-bow shows, as well as presentations given by foot knights who fight with various types of medieval weapon remind the inhabitants and numerous tourists about the eventful history of the city. Tournaments, knightly tourneys, pleinair painting and major celebrations connected with the Days of the Sztum District are held in or at the foot of the castle.
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.