Harun al-Rashid

Abū Jaʿfar Hārūn ibn Muḥammad ar-Rashīd, or simply Hārūn ibn al-Mahdī (c. 763 or 766 – 24 March 809), famously known as Hārūn al-Rashīd, was the fifth Abbasid caliph of the Abbasid Caliphate, reigning from September 786 until his death in March 809. His reign is traditionally regarded to be the beginning of the Islamic Golden Age. His epithet al-Rashid translates to "the Just", "the Upright", or "the Rightly-Guided".