Treaty of Oliva

The Treaty of Oliva, signed in 1660, ended the Second Northern War between Sweden and Poland-Lithuania. It marked a significant shift in power in Northern Europe. Under the treaty, Sweden retained territories gained in earlier conflicts but recognized Polish sovereignty over parts of Prussia. The agreement aimed to establish peace and balance among the nations involved, allowing Poland to focus on internal issues and strengthening Sweden's position as a major power. The treaty also paved the way for future diplomacy in the region, marking a transition toward a more stable political landscape in Northern Europe.