In 1230, the settlement was granted to the Dohna family by the Bohemian King. In 1234, Queen consort Kunigunde of Bohemia founded the first Cistercian abbey in Upper Lusatia in the settlement.[4] In 1319, it passed to the Duchy of Jawor, the southwesternmost duchy of fragmented Piast-ruled Poland.[5] Duke Henry I of Jawor granted a forest and a portion of the settlement's annual income to the monastery.[5] In 1346, the settlement became again part of the Kingdom of Bohemia. In 1346, the abbey became the sole owner of the settlement, confirmed by King John of Bohemia.[6] In 1357 it was granted town rights. In 1373, a town hall and defensive walls were built.[7] The Lusatian League opposed the creation of a new rival centre, and sent an expedition which destroyed the town hall and town gates that same year.[7] During the Hussite Wars, the town was burned down in 1427.[8]
In 1469 the town passed to Hungary, and in 1490 it returned to the Czech Crown, then under the rule of Polish Prince Vladislaus II.[9] From 1635, it was ruled by Electors of Saxony, from 1697 to 1763 also Kings of Poland.
It was the scene of a small battle in the Seven Years' War, described in a contemporary journal as follows: On 31st December 1756 a picket of Prince Heinrich's Regiment under the command of Major Heinrich von Blumenthal, which had been sent out from Zittau to Ostritz, was attacked by 500 Croats who, notwithstanding their numerical superiority were thoroughly beaten off. The Croats got right into the town and set fire to some houses, but the fires were put out. The most serious loss on the Prussian side was the brave Major von Blumenthal, who fell right at the beginning of the action.
The "Shield and Sword" festival (or "SS Festival" for short) was launched on 20 April 2018 commemorating Adolf Hitler's birthday and was opposed by the Ostritz Peace Festival established by local residents.[13] In 2019, a court in Dresden imposed a ban on the sale or possession of alcohol at the Schild and Schwert Festival. Police confiscated thousands of litres of beer and local residents bought up the entire stock from the local supermarket.[14]
^Vademecum historii Górnych Łużyc (in Polish). Południowo-Zachodnie Forum Samorządu Terytorialnego "Pogranicze". p. 50. ISBN978-83-925200-4-7.
^ abRieck, Gisela (2014). "Herzog Heinrich von Jauer herrscht über die östliche Oberlausitz". Ora et labora (in German). No. 49. Ostritz: Freundeskreis der Abtei St. Marienthal. p. 17.
^Dannenberg, Lars-Arne (2013). "Die Burggrafen von Dohna als Stifter der Abtei St. Marienthal in der Oberlausitz". Ora et labora (in German). No. 48. Ostritz: Freundeskreis der Abtei St. Marienthal. p. 17.
^Zakrzewski, Bogdan (1974). "Kapitan Aleksander Fredro na Śląsku i Łużycach". Śląski Kwartalnik Historyczny Sobótka (in Polish). Wrocław: Zakład Narodowy im. Ossolińskich, Wydawnictwo Polskiej Akademii Nauk. XXIX (3): 345.
