Franz Joseph I of Austria of his only son and heir, Crown Prince Rudolf, in 1889, and the assassination of his wife, Empress Elisabeth, in 1898. After the Austro-Prussian War, Austria-Hungary turned its attention to the Balkans, which was a hotspot of international tension because of conflicting interests with the Russian Empire. The Bosnian Crisis was a result of Franz Joseph's annexation of Bosnia and Herzegovina in 1908, which had been occupied by his troops since the Congress of Berlin (1878). On 28 June 1914, the assassination of his nephew, Archduke Franz Ferdinand, in Sarajevo resulted in Austria-Hungary's declaration of war against the Kingdom of
Archduke Franz Ferdinand of Austria employed a staff of sixteen. His authority was reinforced in 1907 when he secured the retirement of the Emperor's confidant Friedrich von Beck-Rzikowsky as Chief of the General Staff. Beck's successor, Franz Conrad von Hötzendorf, was personally selected by Franz Ferdinard. Franz in 1913, as heir-presumptive to the elderly emperor, had been appointed inspector general of all the armed forces of Austria-Hungary ("Generalinspektor der gesamten bewaffneten Macht"), a position superior to that previously held by Archduke Albrecht and including presumed command in wartime. In 1894 Franz Ferdinand met Countess Sophie Chotek, a lady-in-waiting to Archduchess Isabella, wife of Archduke Friedrich,