The Imperial Sword is one of the four most important parts of the Imperial Regalia (Reichskleinodien) of the Holy Roman Empire. During a coronation, it was given to the emperor along with the Imperial Crown (Reichskrone), Imperial Sceptre (Reichszepter), and the Imperial Orb (Reichsapfel). All four parts of the Imperial Regalia are displayed in the Imperial Treasury at the Hofburg Palace in Vienna, Austria. It is also known as Mauritiusschwert, or the sword of Saint Maurice.