During the political upheaval caused by Matthias Corvinus the duchy was overtaken in 1480 by Casimir II, Duke of Cieszyn from the Piast dynasty, who sold it in 1517 to the Hungarian magnates of the Thurzó family, forming the Pless state country.
During the political turmoil triggered by Matthias Corvinus, the duchy was taken over in 1480 by Casimir II, Duke of Cieszyn from the Piast dynasty, who sold it in 1517 to the Hungarian magnates of the Thurzó family, forming the Pless state country.