Encyclopaedia of Islam, Second Edition

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al-Mustaʿṣim Bi ’llāh
(388 words)

, Abū Aḥmad ʿAbd Allāh b. al-Mustanṣir , the last ʿAbbāsid caliph of Bag̲h̲dād (640-56/1247-58), born in 609/1212-13.

After the death of his father in D̲j̲umādā I or II 640/November-December 1242, he was raised to the caliphal throne, but he had neither the talent nor the strength to avert the catastrophe threatening from the Mongols; he allowed himself to be guided by bad counsellors who were not agreed among themselves but working against one another. In 683/1255-6, the Mongol K̲h̲ān Hūlagū [q.v.] demanded that the Muslim rulers should make war on the Ismāʿīlīs of Alamūt. …

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Zetterstéen, K.V., “al-Mustaʿṣim Bi ’llāh”, in: Encyclopaedia of Islam, Second Edition, Edited by: P. Bearman, Th. Bianquis, C.E. Bosworth, E. van Donzel, W.P. Heinrichs. Consulted online on 13 August 2020 <http://dx.doi.org/10.1163/1573-3912_islam_SIM_5632>
First published online: 2012
First print edition: ISBN: 9789004161214, 1960-2007

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