The oldest (Fahd) served as king from 1982 to 2005; the second- and fourth-oldest (Sultan and Naif) served as crown prince but predeceased King Abdullah; and the sixth-oldest (Salman) succeeded Abdullah as king in 2015. With the 2017 death of Prince Abdul Rahman only the two youngest of the Seven (Salman and Ahmed) survive. So, as a political reality, they were six, not seven, as Turki had broken off with his brothers in 1950s.