Rubuta ci gaba don wannan sakin layi - Karni na 17 ya kawo sojojin mamaye na Swedes, Hungarians, Turks, Russia da Cossacks zuwa ƙofofinsa. A shekara ta 1648 sojojin Cossacks da Crimean Tatars suka kewaye garin. Sun kama Babban Castle, suna kashe masu kare shi, amma ba a kori birnin da kansa ba saboda gaskiyar cewa shugaban juyin juya halin Bohdan Khmelnytsky ya karɓi fansa na ducats 250,000, kuma Cossacks sun yi tafiya arewa maso yamma zuwa Zamość. Yana daya daga cikin manyan birane biyu a Poland wanda ba a kama shi ba a lokacin da ake kira "Ruwa"
: ɗayan shine Gdańsk (Danzig). A wannan lokacin, Lwów ya shaida wani abin tarihi, kamar yadda a nan Sarki John II Casimir ya yi sanannen rantsuwar Lwów. A ranar 1 ga Afrilu, 1656, yayin wani taro mai tsarki a cikin Cathedral na Lwów, wanda wakili na papal Pietro Vidoni ya jagoranta, John Casimir a cikin wani babban biki mai cike da alfarma ya ba da Commonwealth a ƙarƙashin kariyar Budurwa Maryamu Mai Albarka, wanda ya sanar da ita a matsayin "Sarauniyar Poland da sauran ƙasashensa". Ya kuma yi rantsuwa "don kare mutanen Mulkin daga duk wani tilastawa da bautar rashin adalci".