Beatrice of Bohemia daughter of King Wenceslaus I of Bohemia and Kunigunde of Hohenstaufen (1225–1290) Parents Kunigunde of Hohenstaufen Wenceslaus I of Bohemia Children John III, Margrave of Brandenburg-Salzwedel Otto V, Margrave of Brandenburg-Salzwedel Kunigunde of Brandenburg, Duchess of Slavonia Matilda of Brandenburg Albert III, Margrave of Brandenburg-Salzwedel Otto VI, Margrave of Brandenburg-Salzwedel Siblings Agnes of Bohemia Ottokar II of Bohemia Vladislaus, Margrave of Moravia Partners Otto III, Margrave of Brandenburg