Kingdom of Hejaz
After the end of the of Ottoman suzerainty and control in Arabia, in 1916, Hussein bin Ali became the leader of an independent State of Hejaz. In 1924, Ali bin Hussein succedded as the King of Hejaz. Then Ibn Saud succedded Hussein as the King of Hejaz and Nejd. Ibn Saud ruled the two as separate units, known as the Kingdom of Hejaz and Nejd from 1926 to 1932.