Agnes of Brandenburg Danish queen consort (1257–1304) (1257–1304) Parents Brigitte Jutta of Saxony John I, Margrave of Brandenburg Children Christopher II of Denmark Elizabeth Eriksdottir Valdemar Eriksson Eric VI of Denmark Richiza Martha of Denmark John III, Count of Holstein-Plön Katherina Eriksdottir Siblings Otto IV, Margrave of Brandenburg-Stendal Conrad, Margrave of Brandenburg-Stendal John II, Margrave of Brandenburg-Stendal Henry I, Margrave of Brandenburg-Stendal Eric of Brandenburg Mechtild von Brandenburg Albrecht von Brandenburg Helene von Brandenburg Hermann von Brandenburg Partners Gerhard II, Count of Holstein-Plön Eric V of Denmark
