The Siege of Kraków was one of battles of the Swedish and Transilvanian invasion of Poland, which took place in the summer of 1657. The royal city of Kraków, occupied by Swedish-Transilvanian garrison of Paul Wirtz and János Bethlen, was besieged by Polish Army of Hetman Jerzy Lubomirski, supported by Holy Roman Empire’s troops under Austrian Field Marshall Melchior von Hatzfeldt.