Archduke Franz Ferdinand of Austria
Franz Ferdinand Karl Ludwig Josef of Austria, Archduke Franz Ferdinand of Austria-Este (Franz Ferdinand Karl Ludwig Josef; ) (18 December 1863 – 28 June 1914) was an archduke (like a prince) of Austria and, from 1896 to his death, was the heir apparent and was supposed to be the next emperor of Austria-Hungary. He was killed in the city Sarajevo by Gavrilo Princip. That made Austria declare war against Serbia, which started the First World War.