List of Abbasid caliphs
The Abbasid caliphs were the holders of the Islamic title of caliph who were members of the Abbasid dynasty, a branch of the Quraysh tribe descended from the uncle of the Islamic prophet Muhammad, Al-Abbas ibn Abd al-Muttalib. == Abbasid Caliphs (750–1258) == The Abbasids came to power overthrowing Umayyad dynasty in the Abbasid Revolution.