 For example, when they attended a session of the Imperial Diet ("Reichstag"), they attended with their own crowns.The oldest depiction of such a private crown is an etching by the artist Albrecht Dürer of Emperor Maximilian I, where a depiction of a crown is seen that might have later influenced the appearance of the crown of Rudolf II.The Imperial Crown of the Habsburg Empire of Austria was never used for a coronation, since, unlike the Holy Roman Empire, it was a hereditary monarchy and such an act of legitimization was not seen as necessary.