Sophia of Brandenburg-Stendal German duchess (1300–1356) Parents Agnes of Bavaria, Margravine of Brandenburg-Stendal Henry I, Margrave of Brandenburg-Stendal Children Ernst von Braunschweig Sophie von Braunschweig Matilde von Braunschweig Albert II of Brunswick-Wolfenbüttel Henry of Brunswick Magnus II, Duke of Brunswick-Lüneburg Otto von Braunschweig Louis of Brunswick Siblings Henry II, Margrave of Brandenburg-Stendal Judith of Brandenburg Agnes of Hesse Partners Magnus I, Duke of Brunswick-Lüneburg