Otto VI, Margrave of Brandenburg-Salzwedel Co-ruler of Brandenburg (1264–1303) Parents Beatrice of Bohemia Otto III, Margrave of Brandenburg Children Siblings Matilda of Brandenburg Kunigunde of Brandenburg, Duchess of Slavonia Otto V, Margrave of Brandenburg-Salzwedel Albert III, Margrave of Brandenburg-Salzwedel John III, Margrave of Brandenburg-Salzwedel Partners Hedwig of Habsburg
