Ma'mun ibn Muhammad, Khwarazmshah

Ma'mun ibn Muhammad was emir of Jurjaniyya, a dependant of the Samanids. In 385/995 he attacked Kath, captured Abu Abd Allah Muhammad, the last Afrighid, had him killed in Jurjaniyya, and took the title "Khwarazmshah". ¹ The author gives his reign as 386–387/996–997. ²

This is the first silver coin in Khwarazm bearing the name Ma'mun. The obverse has the profession of God's oneness followed by "Ma'mun ibn Muhammad", with an inner margin saying this dirham was struck at Jurjaniyya in the year 387 and an outer margin with a verse of al-Rum. ¹ The reverse reads "To God; Muhammad is the Messenger of God ﷺ; al-Ta'i li-llah; Nuh ibn Mansur", naming the Samanid amir Nuh ibn Mansur and the caliph al-Ta'i, although, as the author notes, al-Ta'i had by then been deposed; its margin carries al-Tawba 9:33. ¹ The only known specimen weighs 3.57 g. ¹