The Truce of Altmark, signed on September…

The Truce of Altmark, signed on September 25, 1629 at the Altmark (Stary Targ), near Danzig (Gdańsk) by Sweden and the Polish-Lithuanian Commonwealth during the Thirty Years' War, ends the Polish–Swedish War (1626–1629).

The conditions of the truce allow Sweden to retain control of Livonia and the mouth of the Vistula river.

Sweden also evacuates most of the Duchy of Prussia, but keeps the coastal cities.

the Polish-Lithuanian Commonwealth gets back other Swedish gains since the 1625 invasion.

The greater part of Livonia north of the Western Dvina (Vidzeme) is ceded to Sweden, though Latgale, the southeastern area, remains under Commonwealth rule.

Sweden receives the right to two thirds of all the shipping tolls at ports of the Polish-Lithuanian Commonwealth, such as Danzig and Elbląg (Elbing) and from the Duchy of Prussia ports for the next six years.

These shipping tolls will finance Sweden's involvement in the Thirty Years' War.