Answer:
The correct answer is: the assassination of Archduke of Austria-Hungary - Franz Ferdinand
.
Explanation:
Franz Ferdinand, the Archduke of Austria-Hungary and his wife Sophie were assassinated by Gavrilo Princip in 1914, in Sarajevo.
The political motives for his assassination were the desire to separate the Austro-Hungarian province of Bosnia and Herzegovina and its unification with Great Serbia. The assassination of Ferdinand led directly to World War I when Austria-Hungary gave an ultimatum to Serbia, which was partially denied. Austria-Hungary declared war on Serbia, which triggered a series of war declarations between other European countries.
