Swedish Livonia, which constituted the southern part of modern Estonia, was fully ceded in what peace treaty between Sweden, the Polish-Lithuanian Commonwealth, the Habsburgs and Brandenburg-Prussia?
Swedish Livonia Swedish Livonia (Swedish: "Svenska Livland" ) was a dominion of the Swedish Empire from 1629 until 1721. The territory, which constituted the southern part of modern Estonia (including the island of Ösel ceded by Denmark after the Treaty of Brömsebro) and the northern part of modern Latvia (the Vidzeme region), represented the conquest of the major part of the Polish-Lithuanian Duchy of Livonia during the 1600–1629 Polish-Swedish War. Parts of Livonia and the city of Riga were under Swedish control as early as 1621 and the situation was formalized in Truce of Altmark 1629, but the whole territory was not ceded formally until the Treaty of Oliva in 1660. The minority part of the Wenden Voivodeship retained by the Polish–Lithuanian Commonwealth was renamed the Inflanty Voivodeship (""Livonian Principality""), which today corresponds to the Latgale region of Latvia.
Treaty of Paris (1810) The Treaty of Paris, signed on 6 January 1810, ended the war between France and Sweden after Sweden's defeat by Russia, an ally of France, in the Finnish War of 1808-1809. Russia had previously been an ally of Sweden in the Third and Fourth Coalitions against France, but after Russia's defeat at Friedland, she joined France and attacked Sweden so as to compel her to join Napoleon's Continental System. Indeed, the primary result of the treaty was Sweden's agreement to join the Continental System, so that Sweden would not trade with the UK. Shortly after the treaty was signed, on 21 August 1810, one of Napoleon's marshals, Jean-Baptiste Bernadotte, was elected crown prince of Sweden, and he went on to found the House of Bernadotte, which remains the Royal House of Sweden. The peace resulting from the treaty lasted until Napoleon's refusal to permit Sweden to annex Norway, which was then under the sovereignty of Denmark, an ally of France. This was followed in January 1812 by French occupation of Swedish Pomerania for violation of the Continental System, since Sweden was still trading with the UK, and, in April, Sweden's conclusion of the Treaty of Petersburg with Russia against France.