1. Archduke Franz Ferdinand Carl Ludwig Joseph Maria of Austria (18 December 1863 – 28 June 1914) was the heir presumptive to the throne of Austria-Hungary

2. Franz Ferdinand (18 December 1863 – 28 June 1914) was an Archduke of Austria-Este, Austro-Hungarian and Royal Prince of Hungary and of Bohemia, and from 1889 until his death, heir presumptive to the Austro-Hungarian throne

3. The Sarajevo Assassination, when Franz Ferdinand, heir presumptive to the Austro-Hungarian throne, was killed, was the trigger for the outbreak of the war between the Kingdom of Serbia and the Austro-Hungarian Monarchy, which considered Serbia responsible for the assassination.However the reasons were of a much deeper nature