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Abu 'l-Abbas Muhammad ibn Ja'far al-Muqtadir
أبو العباس محمد بن جعفر المقتدر
Gold dinar of al-Radi, 323 AH.jpg
Gold dinar of ar-Radi
20th Caliph of the Abbasid Caliphate
Reign 24 April 934 – 12 December 940
Predecessor Al-Qahir
Successor Al-Muttaqi
Born December 909
Died 23 December 940 (aged 31)
Religion Islam

Abu 'l-Abbas Muhammad ibn Ja'far al-Muqtadir (Arabic: أبو العباس محمد بن جعفر المقتدر‎) (December 909 – 23 December 940), usually simply known by his regnal name al-Radi bi-llah (Arabic: الراضي بالله‎, "Content with God"[1]), was the 20th Abbasid Caliph, reigning (rather than ruling) in Baghdad from 934 to his death. He died on 23 December 940 at the age of 31.


The seven years' reign of ar-Radi, son of caliph al-Muqtadir, was but a succession of misfortune. Praised for his piety, he became the mere tool of the chief minister of the day. The authority of the Caliph extended hardly beyond the region of the capital city. After one Vazir had been imprisoned by his enemies, and another had defected in disgrace, ar-Radi, being without resources, fell into the hands of an able but cruel, de facto ruling Minister, Ibn Raik, for whom he created the post of amir al-umara 'Amir of the Amirs', who held so absolutely the reins of government that his name was conjoined with the Caliph's in the public prayers.

Around this period, the Hanbalis, supported by popular sentiment, carried things with a high hand. Forcing their way into private dwellings, they overthrew everything not in strict conformity with their tenets, emptied vessels of wine wherever found, broke in pieces musical instruments, pried into the details of trade and commerce and set up in fact a kind of 'Sunni inquisition'. Thus a professor of the Shi'a creed was killed for performing pilgrimage. A famous doctor also was badly handled for affirming some various readings of the Qur'an, of no apparent moment in themselves; and, notwithstanding that he submitted written recantation, had to flee Baghdad for fear of death.

Ar-Radi is commonly spoken of as the last of the real Caliphs: the last to deliver orations at the Friday service, to hold assemblies to discuss with philosophers and discuss the questions of the day, or to take counsel on the affairs of State; the last to distribute largess among the needy, or to interpose to temper the severity of cruel officers.

And yet, with all this he was the mere dependent of another. Beyond the Wasir's shadow, there was little left at home. And abroad, even less: the rich East was gone, Berber Africa and Egypt also, with great part of Syria and Mesopotamia; Mosul independent; peninsular Arabia held by Carmathians and native chieftains; even Basra and Wasit rose in revolt. The advance of the 'Greeks' (Byzantine Empire) was stayed only by the brave Hamdanid prince who was deservedly styled Sayf al-Daula 'Sword of the Nation'.


  1. ^ Bowen, Harold (1928). The Life and Times of ʿAlí Ibn ʿÍsà: The Good Vizier. Cambridge University Press. p. 336. 
Born: 907 Died: 23 December 940
Sunni Islam titles
Preceded by
Caliph of Islam
Abbasid Caliph

24 April 934 – 12 December 940
Succeeded by