al-Amīn, Muḥammad - Encyclopaedia of Islam, THREE
[Article]
Cooperson, Michael
Leiden
Brill
(1,735 words)
Abū ʿAbdallāh Muḥammad al-Amīn b. Hārūn al-Rashīd, the sixth ʿAbbāsid caliph (r. 193-8/809-13), was born in the al-Ruṣāfa quarter of Baghdad in 170/787 to Hārūn al-Rashīd, the fifth caliph (r. 170-93/786-809), and Zubayda bt. Jaʿfar bt. Abī Jaʿfar al-Manṣūr, also known in the sources as Umm Jaʿfar, a granddaughter of the second caliph. His full-blooded Hāshimī descent reportedly gave him precedence over his half-brother ʿAbdallāh al-Maʾmūn (r. 198-218/813-33), who though six months