Uthman ibn Affan (; also known in English by the Turkish and Persian rendering Osman; 576 – 17 June 656) was a companion of the Islamic prophet Muhammad, and the third of the Sunni Rashidun or "Rightly Guided Caliphs". Born into a prominent Meccan clan of the Quraysh tribe, he played a major role in early Islamic history, succeeding Umar ibn al-Khattab as caliph at age 65. He was also the prophet's son-in-law twice, being married to two of the prophet’s daughters Ruqayyah and Umm Kulthum (he was married to the second daughter after the first passed away).