Stanisław I Leszczyński (Polish pronunciation: [staˈɲiswaf lɛʂˈt͡ʂɨj̃skʲi]; Lithuanian: Stanislovas Leščinskis Lithuanian pronunciation: [staˈɲɪsɫɔvas lɛʃˈtʃɪŋskʲɪs]; French: Stanislas Leczinski French pronunciation: [stanislas lɛɡzɛ̃ski] 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 various times Prince of Deux-Ponts, Duke of Bar and Duke of Lorraine.