Mezue ahịrịokwu na-esonụ: Nwanne nwoke nke eze Stanislaus Augustus nke Poland (), Poniatowski malitere ọrụ agha ya na 1780 na ndị agha Austria, ebe ọ ruru ọkwa nke onye isi. N'afọ 1789, mgbe ọ hapụsịrị ọrụ n'Austria, ọ sonyeere ndị agha Poland n'arịrịọ nwanne nna ya. Poniatowski, ugbu a n'ọkwa nke nnukwu ọchịagha na onye isi ndị Royal Guards, sonyere na
Polish-Russian War nke 1792, na-eduga ndị agha okpueze n'agha nke Zieleńce. Mgbe eze kwadoro Njikọ Targowica nke 1792, Poniatowski chere na ọ dị mkpa ka ọ gbaa arụkwaghịm. N'afọ 1794, o sonyere na Kościuszko Uprising ma were ọrụ nke ịgbachitere Warsaw - nke ndị ọchịchị Russia mechara chụpụ ya ruo 1798.