George, Crown Prince of Serbia (Serbian: Ђорђе Карађорђевић / Đorđe Karađorđević; 8 September (O.S. 27 August) 1887 – 17 October 1972), was the eldest son of King Peter I of Serbia and his wife, the former Princess Ljubica of Montenegro. He was the older brother of King Alexander I of Yugoslavia.
In 1909, Crown Prince George killed his servant, and following a negative campaign in the press, he was compelled to give up his claim to the throne. He later served with distinction in the army, was severely wounded during the First World War, and thereby became popular in the country, which aroused the alarm of his younger brother. In 1925, his brother, the King, had him arrested, declared insane, and locked in an asylum. He remained confined there for nearly two decades, until released by the German occupying force during World War II. After that war ended, he was the only member of the royal family not to be sent into exile and declared an enemy of the state.