 The largest of those were Kraków (Cracow), Poznań, Lwów (Lviv), and Warszawa (Warsaw), and outside of the Crown, Breslau (Wrocław).Thorn (Toruń) and Elbing (Elbląg) were the main cities in Royal Prussia after Danzig.During the 16th century, prosperous patrician families of merchants, bankers, or industrial investors, many of German origin, still conducted large-scale business operations in Europe or lent money to Polish noble interests, including the royal court.