The Treaty of Stuhmsdorf, or Sztumska Wieś, was a treaty signed on 12 September 1635 between the Polish–Lithuanian Commonwealth and the Swedish Empire in the village of Stuhmsdorf, Poland, just south of Stuhm (Sztum).
Treaty of Stuhmsdorf, wall painting from Kielce Castle. Visible: bishop and chancellor Jakub Zadzik, Polish king Władysław IV and Hetman Stanisław Koniecpolski.
Commemorative medal made in Poland after the treaty
Poland at the time of the negotiations, 1635
Memorial stone in Sztumska Wieś
Polish–Lithuanian Commonwealth
The Polish–Lithuanian Commonwealth, formally known as the Kingdom of Poland and the Grand Duchy of Lithuania, or simply Poland–Lithuania, was a bi-confederal state, sometimes called a federation, of Poland and Lithuania ruled by a common monarch in real union, who was both King of Poland and Grand Duke of Lithuania. It was one of the largest and most populous countries of 16th- to 17th-century Europe. At its largest territorial extent, in the early 17th century, the Commonwealth covered almost 1,000,000 km2 (400,000 sq mi) and as of 1618 sustained a multi-ethnic population of almost 12 million. Polish and Latin were the two co-official languages, and Roman Catholicism served as the state religion.
The Union of Lublin joined the Kingdom of Poland and the Grand Duchy of Lithuania in 1569.
Sigismund III Vasa, who reigned between 1587 and 1632, presided over an era of prosperity and territorial expansion of the Commonwealth.
Sejm (parliament) of the Polish–Lithuanian Commonwealth in the early 17th century
John III Sobieski, victor over the Ottoman Turks at the Battle of Vienna in 1683.