Mladen Stojanović members of the association, whom he sometimes sharply criticised. Nevertheless, younger students liked being around him. Gaković described him as a tall and handsome man who greatly cared about his appearance; he wore a bow tie and a broad-brimmed hat. On the morning of 28 June 1914, in Sarajevo, Princip assassinated Archduke Franz Ferdinand of Austriaheir presumptive to the throne of Austria-Hungaryand his wife Sophie. Princip was a member of a group of conspirators, which included Trifko Grabež; the whole group was arrested by the Austrian police after the assassination. Blaming Serbia for the attack, Austria-Hungary declared war a month
Muhamed Mehmedbašić the way to Sarajevo, gendarmes searched the train; fearing they were on to him, he threw the knife out the window. Potiorek was planned to be assassinated at the end of March 1914, when the new mufti Čaušević was to be enthroned in Sarajevo. However, upon hearing that Archduke Franz Ferdinand of Austria would come to Sarajevo on Vidovdan, the Black Hand changed their minds. The Archduke's scheduled visit on Vidovdan (28 June), a Serbian national holiday, was perceived as an insult. Ilić summoned Mehmedbašić and informed him on 26 March that the plan now was to murder Archduke Franz