Archduchess of Austria

Archduchess of Austria was a title given to daughters of the Holy Roman Emperor or Austro-Hungarian Emperor, it is the Austrian version of princess. The male version was Archduke of Austria. Archduchess was a reformed version of the "Duchy of Austria."
Rudolf IV, Duke of Austria was the first person to call himself Archduke. The Holy Roman Emperor recognized the title in 1453.