"Al-Ma'mun"@en . "0833-08-09Z"^^ . "0833Z"^^ . . . "0833Z"^^ . "al-Ma'mun"@en . "Abbasid caliph" . "0786-09-15Z"^^ . "0813Z"^^ . "0786Z"^^ . "Ab\u016B Ja\u02BFfar Abdull\u0101h al-Ma\u02BEm\u016Bn ibn Har\u016Bn (also spelled Almamon, Al-Maymun, Al-Ma\u2019moon, Mahmoun and el-M\u00E2mo\u00FBn (Arabic: \u0627\u0628\u0648\u062C\u0639\u0641\u0631 \u0639\u0628\u062F\u0627\u0644\u0644\u0647 \u0627\u0644\u0645\u0623\u0645\u0648\u0646\u200E) ( September 786 \u2013 9 August 833) was an Abbasid caliph who reigned from 813 until his death in 833. He succeeded his brother al-Amin who was killed during the siege of Baghdad (813)."@en . "Ab\u016B Ja\u02BFfar Abdull\u0101h al-Ma\u02BEm\u016Bn ibn Har\u016Bn"@en . . "(\u0627\u0628\u0648\u062C\u0639\u0641\u0631 \u0639\u0628\u062F\u0627\u0644\u0644\u0647 \u0627\u0644\u0645\u0623\u0645\u0648\u0646)"@en .