Mieszko I, Duke of Cieszyn Duke of Cieszyn (1252–1315) Parents Euphemia of Greater Poland Vladislaus I of Opole Children Casimir I, Duke of Cieszyn Władysław of Oświęcim Viola of Teschen Siblings Constance, Duchess of Wodzisław Casimir of Bytom Przemysław of Racibórz Bolko I of Opole Partners NN
