Did Large Cities Exist in the 17th Century Polish-Lithuanian Commonwealth? A Definition Attempt

In this study I have analysed five towns: Poznań, Kraków, Warsaw, Lublin, and Lviv. I aimed to determine whether towns treated as provincial in the Crown would also be characterised by lower economic diversity. The primary question is whether one can talk about large cities in the 17th century Polish-Lithuanian Commonwealth at all? And if so, what factors determined the status of a metropolis?