Seven young Bosnian Serbs, who were part of the nationalist “Black Hand”, planned to assassinate Franz Ferdinand, heir to the throne of Austria-Hungary. The first attempt failed when a bomb was thrown in his car. He missed and the conspirator was arrested. As the car carrying the Archduke went down an alternate route, Gavrilo Princip happened to be there. He shot and killed both Franz Ferdinand and his wife Sophie. This caused a crisis where Austria declared war on Serbia and in response, Russia declared war on Austria. Other nations obliged by their alliances joined in, bringing the outbreak of The First World War.