He was killed in Sarajevohttp://en.wikipedia.org/wiki/Archduke_Franz_Ferdinand_of_Austria
The Assassination of Archduke Franz Ferdinand of Austria triggered the start of the Great War (World War I)
The incident that triggered the beginning of World War 1 was the assassination of the heir to the Austro-Hungarian throne.
it was the 2nd world war
The assassination of Archduke Franz Ferdinand caused World War I. This took place in 1914.
The assassination of Archduke Franz Ferdinand of Austria, which led to the outbreak of World War I ----
His assassination (by Gavrilo Princip) is what triggered World War I.
The assassination of archduke Ferdinand
June 28, 1914.
It was in Sarajevo.
The assassination of Archduke Franz Ferdinand of Austria-Hungary by Serbian nationalists.
when Serbia refused to comply with Austria- Hungary's ultimatum