Kammala jumla mai zuwa: Kościan ya kama shi da Swedes a lokacin
Harin Sweden na Poland (" Ruwan Ruwan Sweden ") a cikin 1655, amma ba da daɗewa ba ƙungiyar masu ra'ayin mazan jiya ta jagoranci Krzysztof Żegocki ta sake kama shi. Garin ya sha wahala daga ƙarin mamayewar Sweden da Rasha a cikin karni na 18, kuma Prussia ta haɗu da shi a cikin Raba na Biyu na Poland a 1793. Tashin hankalin Poland na 1794 ya fara ne a Kościan. A shekara ta 1807 garin ya zama wani ɓangare na Duchy na Warsaw na Poland na ɗan gajeren lokaci, kafin Prussia ta sake haɗa shi a 1815, kuma an dawo da shi zuwa Poland bayan da ƙasar ta sake samun 'yanci a 1918.