Francis Ferdinand, 1863-1914, Austrian archduke, heir apparent (after 1889) of his uncle, Emperor Francis Joseph. In 1900 he married a Czech, Sophie Chotek. She was made duchess of Hohenberg, but because she was of minor nobility their children were barred from succession. Laboring to transform the dual Austro-Hungarian Monarchy into a triple monarchy including a Slavic kingdom under Croatian leadership, he won the enmity of both the Pan-Serbians and the Pan-Germans, and his support of the Christian Socialist campaign for universal suffrage brought the hostility of the Hungarian magnates. In 1913 he became inspector general of the armies. On June 28, 1914, while at Sarajevo on an inspection tour, he and his wife were assassinated by Gavrilo Princip, a Serbian nationalist. Francis Ferdinand's death was the occasion for the Austrian ultimatum, addressed to Serbia by Count Berchtold, that led directly to World War I.

German Franz Ferdinand

(born Dec. 18, 1863, Graz, Austria—died June 28, 1914, Sarajevo, Bosnia and Herzegovina) Archduke of Austria, whose assassination was the immediate cause of World War I. Nephew of Emperor Francis Joseph, he became heir apparent in 1896. His desire to marry Sophie, countess von Chotek, a lady-in-waiting, brought him into sharp conflict with the emperor, and the marriage was only allowed after he agreed to renounce his future children's rights to the throne. From 1906 he exerted influence in military matters and became inspector general of the army (1913). While on an official visit in Sarajevo in June 1914, he and his wife were assassinated by the Serbian nationalist Gavrilo Princip. In July Austria declared war against Serbia, precipitating World War I.

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