Umm ʿĪsā bint Mūsā al-Hādī was an Abbasid dynasty princess, daughter of caliph al-Hadi, niece of caliph Harun al-Rashid and principal wife of al-Ma'mun, the seventh caliph of the Abbasid Caliphate.
Family
Umm Isa was related to the Abbasid ruling House paternally. She was contemporary to several Abbasid caliphs, Abbasid prince and Princesses. ==References==