1660
In the Treaty of Oliva, the Polish King, John II Casimir, renounced his claims to the Swedish crown, which his father Sigismund III Vasa had lost in 1599. Poland formally ceded Swedish Livonia and the city of Riga, which had been under de facto Swedish control since the 1620s. The signing of the treaty ended Swedish involvement in the Deluge.
Read more about this topic: Territorial Evolution Of Poland