Q
Hard 1 Mark
Islamic Studies Caliphate & Rulers: From the Rightly Guided Caliphs to the Ottoman Caliphate
Which Abbasid Caliph was killed when Baghdad fell to the Mongols?
Explanation
Al-Musta'sim Billah (640–656 AH) was the last Abbasid Caliph who was killed when Hulagu Khan destroyed Baghdad in 656 AH.
Reference: Islamic Studies - Caliphate & Rulers , Page 13
Hint
He was the 37th and last Abbasid Caliph in Baghdad.