Kunigunde of Austria Archduchess of Austria (1465-1520) (1465–1520) Parents Eleanor of Portugal, Holy Roman Empress Frederick III, Holy Roman Emperor Children Louis X, Duke of Bavaria Sidonie of Bavaria Ernest of Bavaria Susanne Herzogin von Bayern Sabina of Bavaria Susanna of Bavaria Wilhelm IV, Duke of Bavaria Sibylle of Bavaria Siblings Maximilian I Johann von Habsburg Helene von Habsburg Christof von Habsburg Partners Albert IV, Duke of Bavaria