After the breakdown of the Bohemian Revolt the residents of Silesia, including the Polish gentry in Upper Silesia, were subjected to severe repressions and Counter-Reformational activities, including forced expulsions of thousands of Silesians, many of whom ended up in Poland.
Pärast Tšehhi mässu nurjumist allutati Sileesia elanikud, sealhulgas Poola alamaadel Ülem-Sileesias, tõsistele repressioonidele ja vastureformatsioonilisele tegevusele, sealhulgas tuhandete sileeslaste sundväljasaatmine, kellest paljud jõudsid Poolasse.