Euphemia of Ziębice Silesian princess (1385–1447) Parents Euphemia of Bytom Bolko III of Ziębice Children Wilhelm Oettingen Imagina von Oettingen Ulrich von Oettingen Margareta von Oettingen Anna von Oettingen-Wallerstein Johann I. von Oettingen-Wallerstein Siblings Katharina von Münsterberg Henry II, Duke of Ziębice John I of Ziębice Partners Frederick III of Oettingen