Young Bosnia and the Battle of Kosovo. Two notable organizations are referred to in connection with Young Bosnia: Narodna Odbrana and Black Hand. During a Serbian kangaroo court in French-occupied Salonika in 1916–17, Chief of Serbian Military Intelligence Dragutin Dimitrijević Apis testified that he had organized the assassination of Archduke Franz Ferdinand of Austria, in Sarajevo on 28 June 1914, (the assassin was Gavrilo Princip). In the process, he used not only his power over elements of the Serbian military, but also the Black Hand. Leaders of the Black Hand in turn had penetrated Narodna Odbrana and used that organization to infiltrate
Dobroslav Jevđević secondary school in Sarajevo. There, he joined the revolutionary organisation known as Young Bosnia and became a friend of Gavrilo Princip, the assassin who killed Archduke Franz Ferdinand of Austria on 28 June 1914. The day of the assassination, Jevđević's father was arrested by the Austro-Hungarian police for his connections with the Serb revolutionary organisation "Narodna Odbrana" (National Defence). He was charged with high treason, sentenced to death by hanging in April 1916 and executed in Banja Luka. Jevđević was a successful writer and poet in his youth. He studied law at the universities of Zagreb, Belgrade, and Vienna and