"Al-Ma'mun ibn Harun Ar-Rashid" . . "Caliph Mamoon Rashid" . "al Ma'mun" . "al-Ma\u2019m\u016Bn" . . . . . . . "al-Mamun" . . . . "go on campaign" . . . . . "al-Ma\u2032mun" . "Mamunur Rashid" . "0813" . . . "Al-Ma'mun's" . . "invasion" . . . . . . . "Abu Jafar al-Ma'mun ibn Harun" . "al-Ma'mun" . "al-Ma\u02BFmun" . . . . . "Al-Ma'mun" . . "al-Ma\u02BFm\u016Bn" . "al-Ma'mun's" . . . "Khal\u012Bfah" . . . . . . . "Ma'mun" . . . "became the new caliph" . . "Al-Ma'mun" . . "Al-Mamun" . "Mamun" . "Ma'm\u016Bn" . "Al Ma'mun" . . "Caliph al-Ma'mun" . "al Ma\u2019mun" . "Abdallah al-Ma'mun" . "Caliph al-Ma'm\u016Bn" . "Abdullah Al-Mamun" . "al-M\u0101'm\u016Bn" . "campaign against the Byzantines" . "al-Mam\u016Bn" . . "al M\u00E2m\u00FBn" . . "Al-Ma'm\u016Bn" . "al-Ma\u02BEm\u016Bn" . "al\u2010Ma'm\u016Bn" . . "Amir al-Mu'minin" . . . . . . . . . . . "0833" . . "Al-Maamun" . . . . . . . . . "al-Ma'm\u016Bn" . . "Abd Allah al-Ma\u2019mun" . .