Trifko Grabež society. For the next two years he spent most of his spare time with other nationalists who favoured a union between Bosnia and Herzegovina and Serbia. When it was announced that Archduke Franz Ferdinand, the heir to the throne of Austro-Hungarian Empire, was going to visit Bosnia and Herzegovina in June 1914, Colonel Dragutin Dimitrijević, the chief of the Intelligence Department in the Serbian Army and head of the Black Hand, sent seven men, Grabež, Nedeljko Čabrinović, Vaso Čubrilović, Cvjetko Popović, Danilo Ilić, Muhamed Mehmedbašić and Gavrilo Princip to Sarajevo to assassinate him. Each man was given either a revolver
Petar Kočić who was awarded the Nobel Prize in Literature in 1961. Kočić's cause was also taken up by South Slav nationalists such as Gavrilo Princip, the Young Bosnian who assassinated Archduke Franz Ferdinand of Austria in June 1914, precipitating the July Crisis and the outbreak of World War I. Young revolutionaries, Butler writes, "learned from Kočić's example that Bosnia could not be freed through the law and the courts." The radical land reforms advocated by Kočić only came to fruition after World War I, following the collapse of Austria-Hungary and the creation of the Kingdom of Serbs, Croats and Slovenes, which