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
Milena Mrazović and articles for European newspapers, covering important events such as the Annexation Crisis, the assassination of Archduke Franz Ferdinand, and the trial of Gavrilo Princip. Mrazović was keenly interested in ethnography. She was one of the founders of the National Museum of Bosnia-Herzegovina in 1888 and its regular benefactor. In 1889, Mrazović became the first woman to be accepted into the Anthropological Society in Vienna. In February 1896, at the invitation of the Ethnographic Society, she gave the first lecture about Bosnia-Herzegovina in Vienna. As a travel writer, Mrazović presented Bosnia-Herzegovina to the German-speaking world. Accompanied by the painter Augusta