
Franz Ferdinand was the nephew of the Emperor of the Austro-Hungarian Empire; Franz Joseph and the heir to the throne.
In June 1914, the Archduke and his wife were in Bosnia (at the time a province of Austria-Hungary) to review military manoeuvres. During a drive through Sarajevo his open topped car was attacked by an assassin armed with a pistol. Both the Archduke and his wife were killed. The assassin was apprehended, tried and convicted. The neighbouring country of Serbia was found to be behind the attack and one month later Austria-Hungary declared war on Serbia.
An interlocking web of treaties and defence agreements quickly drew most of Europe into the conflict.
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