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 II Petrović-Njegoš with Montenegro against the Ottoman Turks. Like many of his contemporaries, Gavrilo Princip, the assassin of Archduke Franz Ferdinand of Austria, knew "Gorski vijenac" off by heart. Njegoš's influence parallels that of Shakespeare in the English-speaking world and his languagethough archaichas supplied modern Serbian with a number of well known quotations. The epic has become the basic educational text for Montenegrins and Serbs. In Montenegro it was (and still is) learnt by heart, and has been integrated into oral tradition. Njegoš's picture can often seen in taverns, offices, hospitals, on Yugoslav and Serbian currency and in people's homes in Montenegro