Vizier (Abbasid Caliphate)
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The vizier was the senior minister of the Abbasid Caliphate, and set a model that was widely emulated in the Muslim world. Many viziers came to enjoy considerable power, even at times eclipsing the Ab
Gold dinar of Caliph al-Muqtadir with the names of his heir Abu'l-Abbas and the vizier Amid al-Dawla
Abbasid Silver dirham of 940/941 CE, with the names of caliph al-Muttaqi and the amir al-umara Bajkam
Al-Ma'mun
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Abū al-ʿAbbās Abd Allāh ibn Hārūn al-Maʾmūn, better known by his regnal name al-Ma'mun, was the seventh Abbasid caliph, who reigned from 813 until his death in 833. His leadership was marked by the po
Gold dinar of al-Ma'mun, minted in Egypt in 830/1
Silver Dirham of al-Ma'mun. AH 199–218 / AD 813–833. Dirham weight 25mm, 3.19 g, 3h. Medinat Isbahan mint dated AH 205 (820/1 AD)
The Byzantine embassy of John the Grammarian in 829 to Ma'mun (depicted left) from Theophilos (depicted right)
The populace pays allegiance to the Abbasid caliph, al-Ma'mun in 813. (from the book Tarikh-i Alfi 1593 CE)