Osman I or Osman Ghazi was the eponymous founder of the Ottoman Empire. While initially a small Turkoman principality during Osman's lifetime, his beylik transformed into a vast empire in the centuries after his death. It existed until 1922 shortly after the end of World War I, when the sultanate was abolished.
- Occupation
- governor, sultan
- Position held
- sultan of the Ottoman Empire
- Citizenship
- Ottoman Empire
- Born
- August 23, 1258
- Died
- August 1, 1326