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 Rainer Ferdinand of Austria Archduke Rainer Ferdinand of Austria Archduke Rainer Ferdinand Maria Johann Evangelist Franz Ignaz of Austria (11 January 1827 – 27 January 1913), a member of the House of Habsburg-Lorraine and nephew of Emperor Francis II, was an Austrian politician who served as Minister-President of Austria from 1861 to 1865. Born in Milan, the capital of the Austrian Kingdom of Lombardy–Venetia, he was a son of Viceroy Archduke Rainer Joseph of Austria (1783–1853) and his consort Princess Elisabeth of Savoy (1800–1856). Rainer Ferdinand spent most of his youth at the Royal Villa of Monza. He studied law at the University of