On 28 June 1914, Austrian Archduke Franz Ferdinand visited the Bosnian capital, Sarajevo . A group of six assassins ( Cvjetko Popović , Gavrilo Princip , Muhamed Mehmedbašić , Nedeljko Čabrinović , Trifko Grabež , Vaso Čubrilović ) from the Yugoslavist group Mlada Bosna , supplied by the Serbian Black Hand , had gathered on the street where the Archduke's motorcade would pass, with the intention of assassinating him. Čabrinović threw a grenade at the car, but missed. Some nearby were injured by the blast, but Ferdinand's convoy carried on. The other assassins failed to act as the cars drove past them.