Al-Hasan ibn Sahl

Al-Hasan ibn Sahl (Arabic: الحسن بن سهل‎) (died 850/51) was an Abbasid official and governor of Iraq for Caliph al-Ma'mun (reigned 813–833) during the Fourth Fitna. Hasan's father was an Iranian Zoroastrian convert to Islam. Along with his brother, the future vizier al-Fadl ibn Sahl, Hasan entered the service of the Barmakid al-Fadl ibn Yahya in the reign of Harun al-Rashid (r. 786–809). During the civil war of the Fourth Fitna against Ma'mun's half-brother al-Amin (r. 808–813), he was entrusted with the supervision of the land tax (kharaj) office.

Al-Hasan ibn Sahl

Al-Hasan ibn Sahl (Arabic: الحسن بن سهل‎) (died 850/51) was an Abbasid official and governor of Iraq for Caliph al-Ma'mun (reigned 813–833) during the Fourth Fitna. Hasan's father was an Iranian Zoroastrian convert to Islam. Along with his brother, the future vizier al-Fadl ibn Sahl, Hasan entered the service of the Barmakid al-Fadl ibn Yahya in the reign of Harun al-Rashid (r. 786–809). During the civil war of the Fourth Fitna against Ma'mun's half-brother al-Amin (r. 808–813), he was entrusted with the supervision of the land tax (kharaj) office.