Władysław of Bytom Duke of Kozle (1280–1352) Parents Helena Casimir of Bytom Children Casimir of Koźle Agnieszka Euphemia of Bytom Bolesław of Bytom Siblings Mieszko of Bytom George of Bytom Bolesław of Toszek Siemowit of Bytom Maria of Bytom Partners Beatrice of Brandenburg Ludgarda von Mecklenburg