What was relation of Al-Mansur Abbasid Caliphate to Abbas Al-Saffah? A) Brother of Abbas Al-Saffah B) Cousin of Abbas Al-Saffah C) Son of Abbas Al-Saffah D) None of these Related MCQs: Give the name of the founder of the Abbasid dynasty who is historically known as “As-Saffah”. First Abbasi Calipha Abul Abbas as-Saffah overthrew the last Ummayad Calipha Marwan II in..? Diwan-e-Al Zimma in Abbasid period is associated with? “Bandar Abbas” is the seaport of?