Al-Hadi
Abū Muḥammad Mūsā ibn al-Mahdī al-Hādī better known by his laqab al-Hādī (الهادي) was the fourth Arab Abbasid caliph who succeeded his father al-Mahdi and ruled from 169 AH until his death in 170 AH. His short reign ended with internal chaos and power struggles with his mother.
26 April 0764
Born on the same birth day (26 April): Alice de Toeni, Countess of Warwick • Arno Allan Penzias • Frank Hahn • John Grierson • John James Audubon • Kosuke Fukudome • Michael Kergin • Owen Willans Richardson • Ruut Tarmo • Sylvain Simard • Thomas Reid • Tionne Watkins