Rubuta ci gaba don wannan sakin layi - A karkashin John Casimir, Cossacks sun girma cikin iko kuma a wasu lokuta sun sami damar kayar da mutanen Poland; 'yan Sweden sun mamaye yawancin Poland
, gami da Warsaw, babban birni; kuma Sarkin, wanda talakawansa suka watsar ko suka ci amanarsa, dole ne ya nemi mafaka na ɗan lokaci a Silesia. Sakamakon yaƙe-yaƙe tare da Cossacks da Rasha, Commonwealth ya rasa Kiev, Smolensk, da duk yankunan gabashin Kogin Dnieper ta Yarjejeniyar Andrusovo (1667). A lokacin mulkin John Casimir, Gabashin Prussia ya yi nasarar yin watsi da matsayinsa na hukuma a matsayin Poland. A ciki, tsarin rushewa ya fara. Manyan mutane, suna yin ƙawancen kansu da ƙasashen waje, sun bi manufofi masu zaman kansu; tawayen Jerzy Lubomirski ya girgiza kursiyin.