Assassination Lincoln, James A. Garfield, William McKinley and John F. Kennedy—died at the hands of assassins. There have been at least 20 known attempts on U.S. presidents' lives. Huey Long, a Senator, was assassinated on September 10, 1935. Robert F. Kennedy, a Senator and a presidential candidate, was also assassinated on June 6, 1968 in the United States. In Austria, the assassination of Archduke Franz Ferdinand and his wife Sophie, Duchess of Hohenberg in Sarajevo on June 28, 1914, carried out by Gavrilo Princip, a Serbian national and a member of the Serbian nationalist insurgents (The Black Hand), is blamed for
Emperor of Austria in 1875. As Ferdinand I had no sons, his brother Francis Charles would have become emperor, but was persuaded by his wife to pass over the right of succession to their son, Francis Joseph. He accepted the duty of the Emperor of Austria without having been Crown Prince or "Thronfolger" before. Francis Joseph's only son Rudolf committed suicide in 1889, Francis Joseph's brother Karl Ludwig died in 1896. Karl Ludwig's son Franz Ferdinand became heir presumptive to the throne. He was assassinated in Sarajevo, Bosnia in 1914; due to his morganatic marriage, his son had no rights to the throne.