SMS Kaiser Karl VI and Argentina. On 25 May, she represented Austria-Hungary at the centennial of Argentina's May Revolution, which won the country's independence from Spain. On 28 June 1914, Archduke Franz Ferdinand, the heir to the Austro-Hungarian throne, was assassinated in Sarajevo; the assassination sparked the July Crisis and ultimately the First World War, which broke out a month later on 28 July. The German battlecruiser , which had been assigned to the Mediterranean Division, sought the protection of the Austro-Hungarian fleet, and so Admiral Anton Haus sent the fleet, including "Kaiser Karl VI", south on 7 August to assist his German ally.
Archduke Leopold Ferdinand of Austria Archduke Leopold Ferdinand of Austria Archduke Leopold Ferdinand of Austria (2 December 1868 – 4 July 1935) was the eldest son of Ferdinand IV, Grand Duke of Tuscany, and Alice of Bourbon-Parma. In 1892 and 1893 Leopold accompanied Archduke Franz Ferdinand of Austria on a sea voyage through the Suez Canal and on to India and Australia. The relationship between the two Archdukes was extremely bad and their permanent attempts to outdo and humiliate the other one led the "Kaiser" Franz Joseph to order Leopold Ferdinand to return to Austria immediately. He left the ship in Sydney and went back