The Sword of Ambition

'Uthman ibn Ibrahim al-Nabulusi (d. 660/1262), of Palestinian origin, was a leading Egyptian bureaucrat in the court of the Ayyubid sultans. In addition to his pivotal work, The Sword of Ambition, he wrote several works on Egyptian administration and government, including A Presentation of the Living, Eternal God's Work in Regulating the Fayyum, the most extensive tax record that survives from the medieval Middle East.