In the late 18th-century, the subsequent new village owners Jordanów, an affluent Polish burgher family from Kraków, started a strong local persecution of Protestants. In response, an exodus resulted, 64 families and 360 individual refugees with their belongings, crossed north-west from Kozy over the border at Dzieditz (Czechowice-Dziedzice) into Prussia controlled Upper Silesia, on the night of 25 April 1770, and there founded the village Anhalt (Holdynow/Hołdunów) near Pleß (Pszczyna). The escape route was secured by a Prussian Army cuirassier cavalry squadron escort under General Friedrich Wilhelm von Seydlitz; the resettlement was supported by the King of Prussia, Frederick the Great, who asked only whether the refugees from Poland understood German. Thus came a 200-year end in the history of evangelicalism in Kozy. Only a few, undecided inhabitants, remained in Kozy, and were subjected to further reprisals by the Jordanów landowners.