With the events of 1505 Poland had become a "Nobles’ Democracy". The Lublin Union of 1569 constituted the Polish-Lithuanian Commonwealth as an influential player in European politics and a vital cultural entity. The result was, however, that Europe’s powers elected Poland’s Kings till the country was finally devided and erased from the map in 1795. The Prince of Conde (introduced in pt. 1 as the the real-life Cæsario) was among the applicants in the 1670s, Frederick Augustus I, Prince-Elector of Saxony became King of Poland at the beginning of the 18th century. See the Wikipedia article on Poland’s history (15691795).