764 births

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.

Japanese noble