al-Mu'tasim
Abbasid Caliph
Years: 794 - 842
Abu Ishaq 'Abbas al-Mu'tasim ibn Harun (794 – 5 January 842) is an Abbasid caliph (833–842).
He succeeds his half-brother al-Ma'mun.
In Arabian communities, al-Mu'tasim is an example of caliphal magnanimity, because of the famous incident "Wa Mu'tasimah".
