Tuhia he haere tonu mo tenei waahanga - I te 1523, i hokona e George o Schellenberg a Krnov ki te Hohenzollern margrave George o Brandenburg-Ansbach, i taea te whakawhirinaki ki te taonga tuku iho Hungarian o tana hoa wahine a Beatrice de Frangepan, te pouaru o Matthias Corvinus. Mai i te 1532 i whakahaerehia e te margrave te Upper Silesia katoa, i te wa i riro ai ia i te Duchy o Opole me Racibórz mai i te Piast duke Jan II te Pai. I hangaia ano e ia te Castle Krnov me te whakauru i te Whakahoutanga Porotetani i Silesia, me te peia o nga Teutonic Knights, Franciscans me nga Minorites. Ko te kaha o te Whare Porotetani o Hohenzollern i nga whenua o te karauna Silesian i whakaarohia e Ferdinand I o Habsburg, kingi Bohemian mai i te 1526. Heoi, ko George me tana tama a Margrave George Frederick, nana nei i whakahaere mai i te 1543, i taea te pupuri i te duchy. I kaha ake te pakanga i te wa i mate a George Frederick i te tau 1603 kaore he tamariki, ka tukuna a Krnov ki tana whanaunga ko Elector Joachim III Frederick o Brandenburg, nana nei i hoatu ki tana tama a Johann Georg i te tau 1607. Ko nga rangatira o Habsburg i whakaaro ko te Duchy he whenua kua whakahokia mai, a, i muri i te Whakakeke Bohemian me te 1620 Battle of White Mountain
I tangohia e te Emepara Ferdinand II nga taonga o Hohenzollern i ona whenua Bohemian. Ko te kaitautoko pono a Ferdinand Prince Karl I o Liechtenstein, Duke o Opava mai i te 1613, i whiwhi i a Krnov. I whakakotahihia nga duchies e rua i te 1623 a i whakawhiwhia ki te Counter-Reformation.