Treaty of Nystad
The Treaty of Nystad (1721), signed at the present-day Finnish town Uusikaupunki, ended the Great Northern War, in which Russia received the territories of Estonia, Livonia and Ingria, as well as much of Karelia and Tsar Peter I of Russia replaced King Frederick I of Sweden, as ruler of the conquered provinces. It marked the advent of Russia as a world power in place of Sweden. The conflict with the other parties, Hannover, Kingdom of Prussia and Denmark had been concluded by the Stockholm treaties in 1719 and 1720.See also: Uusikaupunki