Archduke Franz Ferdinand of Austria

Archduke Franz Ferdinand Carl Ludwig Joseph Maria of Austria (Francis Ferdinand, 18 December 1863 – 28 June 1914) was the heir presumptive to the throne of Austria-Hungary. His assassination in Sarajevo was the most immediate cause of World War I. Franz Ferdinand was the eldest son of Archduke Karl Ludwig of Austria, the younger brother of Emperor Franz Joseph I of Austria.