Despite problems that led to his nickname "The Father of the Two Evils", Prince Mohammed was an intelligent and dynamic personality, leaving the possibility of another royal feud. During one of the times Faisal had taken over the government, he had appointed his half brother Khalid as Deputy Prime Minister in 1962, bypassing Muhammed. Secret negotiations as to the conditions to which Muhammed would step aside would last well after the reign of Faisal had begun, and Muhammed was technically Crown Prince from 1964 to 1965, when Khalid was declared to have the position, in the process disinheriting two other princes, Nasser and Saad, who were deemed "unworthy".