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
Marijan Varešanin big encouragement to Gavrilo Princip. Princip visited Žerajić's grave where he promised to take a revenge, which he did by killing Archduke Franz Ferdinand in Sarajevo on 28 June 1914. Even though the assassination attempt was a failure, Varešanin started to think about his retirement. On 10 May 1911 his request for dismissal as governor was accepted and he was replaced by Oskar Potiorek. On 10 July 1911 he officially entered into a retirement after 45 years of service. Marijan Varešanin Marijan Varešanin von Varesch (1 February 1847 – 22 April 1917) was Governor of Bosnia and Herzegovina from 1909