Abul Abbas al-Saffah, Muslim caliph (born 721)

Abu al-ʿAbbās Abd Allāh ibn Muḥammad ibn ʿAlī ibn ʿAbd Allāh ibn al-ʿAbbās, known by his laqab al-Saffah, was the first caliph of the Abbasid Caliphate, one of the longest and most important caliphates in Islamic history.