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The House of Saud ( ) is the ruling royal family of Saudi Arabia. It is composed of the descendants of Muhammad bin Saud, founder of the Emirate of Diriyah, known as the First Saudi state (1744–1818), and his brothers, though the ruling faction of the family is primarily led by the descendants of Ibn Saud, the modern founder of Saudi Arabia. The most influential position of the royal family is the King of Saudi Arabia. King Salman, who reigns currently, chose first his nephew and then his son as the crown prince without consulting the Allegiance Council. The family is estimated to comprise 15,000 members, but the majority of the power and wealth is possessed by a group of about 2,000 of them. 
Muhammad bin Saud