Al-Mansur, Almanzor or Abu Ja'far Abdallah ibn Muhammad al-Mansur (712–775; Arabic: ابو جعفر عبدالله ابن محمد المنصور) was the second Abbasid Caliph. He was born at al-Humaymah, the home of the 'Abbasid family after their emigration from the Hejaz in 687–688. His father, Muhammad, was a gr… (More on Al-mansur)