 He was the full brother of Prince Mansour (1921–1951), Prince Mishaal (1926–2017) and Princess Qumash who died on 26 September 2011.Their mother Princess Shahida (died 1938), an Armenian, was reportedly one of the Ibn Saud's favorite wives.Mutaib bin Abdulaziz served as deputy minister of defense from 1951 to 1956 when his full brother Mishaal bin Abdulaziz was the minister.