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Duchy of Oświęcim coat of arms in the 13th century
The Duchy of Oświęcim, or the Duchy of Auschwitz, was one of many duchies of Silesia, formed in the aftermath of the fragmentation of Poland. It was established about 1315 by the Polish royal Piast dynasty. Briefly semi-autonomus, with its capital in Oświęcimmarker, it was finally reattached to the Kingdom of Poland in 1564. Annexed by the Habsburg Empire in 1772, the remaining ducal title ceased to exist in 1918 with the lands being reincorporated into the Second Polish Republicmarker.


The duchy was created in 1315 in the aftermath of the ongoing 12th century fragmentation of Poland and the Duchy of Silesia. Its lands originally were part of the larger Duchy of Teschen (Cieszyn) until after the death of Duke Miezsko I in 1315, the lands of Oświęcim east of the Biała river were split off from it as a separate duchy for Mieszko's son Władysław. In 1327 his heir Duke Jan I the Scholastic paid homage to John of Luxembourg and likewise many other Silesian duchies, Oświęcim became a vassal of the Bohemian Crown.

In 1445 the duchies of Zator and Toszekmarker were created from some the lands of the duchy. The History of the City of Oswiecim (based on " Auschwitz 1940-1945. Central Issues in the History of the Camp", published by the Auschwitz-Birkenau State Museum, Poland) Though the Duchy of Oświęcim had fallen under the Bohemian vassalage, it was re-united with Poland in 1454, when the last duke, Jan IV, declared himself a vassal of the Polish king Casimir IV Jagiellon. Jan had no male heirs and sold his duchy to King Casimir for the price of 3,000,000 Prague groschen three years later.

At the General sejm of 1564, King Sigismund II Augustus issued privileges of incorporation recognizing both Duchies of Oświęcim and Zator as part of the Polish Crown into the Silesian County of the Kraków Voivodeship, although the Polish kings retained both ducal titles.

Oświęcim and the lands of the former duchy would become part of the Austrianmarker crown land Galicia after the First partition of Poland in 1772, and were reattached to the recreated Polish state in 1918.
Oświęcim Castle

Dukes of Oświęcim

The Dukes of Oświęcim belonged to the Silesian branch of the Piast dynasty (see also Dukes of Silesia).

1314/5-1321/4 Władysław I (son of Mieszko I of Cieszyn, from 1290 co-regent, due to division of Oświęcim)
1321/4-1372 Jan I the Scholastic (son of Władysław I)
1321/4-1325 Eufrozyna Mazowiecka (wife of Władysław I, mother of Jan I, regent, d. 1329)
1372-1375/6 Jan II (son Jan I)
1375/6-1405 Jan III (son of Jan II, died childless)
1405-1406 Przemysław (also known as Przemysław the Younger (Młodszy), son of Przemysław I Noszak (whose uncle was Mieszko cieszyński), from 1404 prince of half of Ścinawamarker and Głogów, from 1405 also in Toszekmarker)
1410-1433/4 Casimir I (son of Przemysł Młodszy, due to division in 1414 of Oświęcim, Toszek and Strzelinmarker (in Strzelin until 1427))
1433/4-1484 Przemysław of Toszek (son of Casimir I, also prince of Toszek due to its division in 1445)
1433/4-1456 Jan IV (brother of Przemysław Toszecki and son of Kazimierz I, also prince of Toszek, from 1445 due to a division of Oświęcim, 1465-1482 Gliwicemarker, abdicated (Oświęcim transferred to Crown of Poland), d. 1496)

Rulers claiming the ducal title after partition of Poland

In the aftermath of the First Partition of Poland until 1918, the Habsburg Holy Roman Emperors, from 1804 Emperors of Austria held the title of a Duke of Auschwitz ( ) which constituted part of their official grand title.

Emperor Acceded Deceded
Joseph II 1772 20 February 1790
Leopold II 20 February 1790 1 March 1792
Francis I 1 March 1792 2 March 1835
Ferdinand I 2 March 1835 2 December 1848
Francis Joseph I 2 December 1848 21 November 1916
Charles I 21 November 1916 11 November 1918


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