Gavrilo Princip (1894-1918) was a Bosnian-Serbian nationalist and member of the Black Hand, which was a secret Serbian society founded in 1911 by Serbian Army officers to fight for the liberations of Serbs from Austria-Hungary domination, using terrorist methods. Gavrilo Princip carried out the assassination of Archduke Franz Ferdinand, heir apparent to the Austro-Hungarian empire throne, in Sarajevo, on June 28, 1914, triggering World War I.
Gavrilo Princip was born in Obljaj, Bosnia-Herzegovina, on July 25, 1894. Although the town where he was born was part of Austria-Hungary, ethnically, he was a Serbian. When he was young, he moved to Sarajevo to study at a secondary school. However, having participated in a demonstration against the city government in 1912, he was expelled from school, As a result, he traveled to Belgrade, Serbia, where he enrolled at a grammar school. It was then, in 1912, that he became a member of the Black Hand. After he killed Franz Ferdinand and his wife Sophie, he was immediately captured and hauled off to prison. He received a life setence, but died of tuberculosis in April 1918 while he was in jail.