Ka cika wannan magana: An fara ambata ƙauyen Słomniki a shekara ta 1287, a matsayin wurin farauta da ke tsakiyar kurmi mai kauri. A wancan lokacin, na limaman Cistercian ne, kuma yana kan hanyar kasuwanci daga Bochnia da Wieliczka zuwa Greater Poland. A cikin karni na 13, Poland ta sha wahala daga hare-haren Mongol da yawa (duba mamayewar Mongol na Poland), wanda kuma aka lalata Słomniki. A cikin 1358 Sarki Kazimierz Wielki ya ba Słomniki Magdeburg haƙƙin haƙƙin mallaka, kuma an tsara kasuwar kasuwar tsakiyar zamanai, wanda har yanzu yana wanzu. Birnin ya bunƙasa, kuma sarakunan Poland da yawa sun ziyarce shi a ƙarni na 15 da 16. A shekara ta 1554, Słomniki ya zama ɗaya daga cikin manyan cibiyoyin Furotesta na Gyara, sa'ad da aka buɗe haikalin Calvinist a nan. A shekara ta 1564, an yi taron cocin Reformed na Poland a Słomniki. Kamar yawancin garuruwa a Kananan Poland, an lalata Słomniki gaba ɗaya a cikin
Sweden ta mamaye Poland, kuma lokacin wadata ya ƙare.