The Warsaw Confederation was a

confederation A confederation (also known as a confederacy or league) is a union of sovereign groups or states united for purposes of common action. Usually created by a treaty, confederations of states tend to be established for dealing with critical issu ...

against King of Poland–Lithuania

Augustus II the Strong Augustus II; german: August der Starke; lt, Augustas II; in Saxony also known as Frederick Augustus I – Friedrich August I (12 May 16701 February 1733), most commonly known as Augustus the Strong, was Elector of Saxony from 1694 as well as K ...

. It was formed on 16 February 1704 in

Warsaw Warsaw ( pl, Warszawa, ), officially the Capital City of Warsaw,, abbreviation: ''m.st. Warszawa'' is the capital and largest city of Poland. The metropolis stands on the River Vistula in east-central Poland, and its population is officia ...

. With the backing of Charles XII of Sweden, it dethroned August II and declared

Stanisław Leszczyński Stanisław I Leszczyński (; lt, Stanislovas Leščinskis; french: Stanislas Leszczynski; 20 October 1677 – 23 February 1766), also Anglicized and Latinized as Stanislaus I, was twice King of Poland and Grand Duke of Lithuania, and at v ...

king.. In response on 20 May 1704, the supporters of August II formed the Sandomierz Confederation. The Warsaw Confederation was eventually victorious in the civil war in Poland, which ended with the Treaty of Altranstädt. Soon, however, after the Swedish defeat in the

Battle of Poltava The Battle of Poltava; russian: Полта́вская би́тва; uk, Полта́вська би́тва (8 July 1709) was the decisive and largest battle of the Great Northern War. A Russian army under the command of Tsar Peter I defeat ...

, the Russians prevailed, and Augustus II resumed the Polish throne in 1709..

References

See also