Original sentence: 250, meaning devil or 'spirit of darkness',   a thoroughly negative view of Muhammad in medieval west, cf.Bernard Lewis states that "The development of the concept of Mahound started with considering Muhammad as a kind of demon or false god worshipped with Apollyon and Termangant in an unholy trinity
Edited sentence: " Bernard Lewis states that "The development of the concept of Mahound started with considering Muhammad as a kind of demon or false god worshipped with Apollyon and Termangant in an unholy trinity.250, meaning devil or 'spirit of darkness',   a thoroughly distorted view of Muhammad in medieval west, cf.At one point Muhammad was transformed into Mahound, the prince of darkness.William Montgomery Watt states: "Of all the world's great men none has been so much maligned as Muhammad