Treaty of Stuhmsdorf
Treaty of Stuhmsdorf, wall painting from Kielce Castle, showing Chancellor Jakub Zadzik, Władysław IV and Hetman Stanisław Koniecpolski | |
| Signed | 12 September 1635 |
|---|---|
| Location | Sztumska Wieś, Poland |
| Parties | |
| Languages | German |
The Treaty of Stuhmsdorf, was signed on 12 September 1635 in Sztumska Wieś, Poland, between the Polish–Lithuanian Commonwealth and Sweden. With the latter weakened by its involvement in the Thirty Years' War, it extended the 1629 Truce of Altmark for 26+1⁄2 years, with Sweden making significant concessions.
Although the Commonwealth regained many territories lost during the Polish–Swedish War (1600–1629), in return Sweden secured its acquisitions in the Baltic Sea. This allowed them to focus on the Holy Roman Empire without worrying about a possible new front. The truce lasted until the outbreak of the Second Northern War in 1655.