Agnes of Brandenburg ( -1329) (d. 1329) Parents Conrad, Margrave of Brandenburg-Stendal Constance of Greater Poland Children Albert II, Prince of Anhalt-Zerbst Waldemar I, Prince of Anhalt-Zerbst Agnes von Anhalt-Zerbst Jutta, Gräfin von Anhalt-Zerbst Mathilda of Anhalt-Zerbst Siblings Johan IV van Brandenburg Konrad von Brandenburg Waldemar Otto VII van Brandenburg Partners Albert I, Prince of Anhalt-Zerbst