8th-century Abbasid caliphs

5th Abbasid caliph (r. 786–809)

Abū Jaʿfar ʿAbd Allāh ibn Muḥammad al-Manṣūr (; ‎; 714 – 6 October 775) usually known simply as by his laqab al-Manṣūr () was the second Abbasid caliph, reigning from 754 to 775 succeeding his brother al-Saffah (). He founded the 'Round City' of Madinat al-Salam, which was to become the core of imperial Baghdad.

Abu al-ʿAbbās Abd Allāh ibn Muḥammad ibn ʿAlī ibn ʿAbd Allāh ibn al-ʿAbbās (‎; 721/722 – 8 June 754), 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.

Abū ʿAbd Allāh Muḥammad ibn ʿAbd Allāh al-Manṣūr (; 744 or 745 – 785), better known by his regnal name al-Mahdī (, "He who is guided by God"), was the third Abbasid Caliph who reigned from 775 to his death in 785. He succeeded his father, al-Mansur.

Abū Muḥammad Mūsā ibn al-Mahdī al-Hādī (; 26 April 764 CE 14 September 786 CE) better known by his laqab al-Hādī () was the fourth Abbasid caliph who succeeded his father al-Mahdi and ruled from 169 AH (785 CE) until his death in 170 AH (786 CE). His short reign ended with internal chaos and power struggles with his mother.

caliphs of the Abbasid Caliphate