William, Margrave of Hachberg-Sausenberg Margrave of Hachberg-Sausenberg (1406–1482) Parents Rudolf III, Margrave of Hachberg-Sausenberg Anna von Freiburg Children Rudolf IV, Margrave of Hachberg-Sausenberg Ursula of Baden-Hochberg Hugo, Margrave of Hachberg-Sausenberg Siblings Otto III of Hachberg Verena von Hachberg Partners Elisabeth, Countess of Montfort-Bregenz
