Vladislaus I of Opole Silesian nobleman (1225–1281) Parents Viola, Duchess of Opole Casimir I of Opole Children Mieszko I, Duke of Cieszyn Constance, Duchess of Wodzisław Bolko I of Opole Casimir of Bytom Przemysław of Racibórz Siblings Euphrosyne of Opole Więcesława Mieszko II the Fat Partners Euphemia of Greater Poland
