Sultan bin Abdulaziz Al Saud, called Sultan the Good in Saudi Arabia, was the Saudi defense minister from 1963 to 2011 and the Crown Prince of Saudi Arabia from 2005 to 2011.

The crown prince of Saudi Arabia is the second-most important position in Saudi Arabia, second to the King, and is his designated successor. Currently, the Crown Prince assumes power with the approval of the Allegiance Council after he is nominated by the King. This system was introduced to the country during the reign of King Abdullah. In the absence of the King, an order is issued to have the Crown Prince manage the affairs of the state until the King's return.