 Complete the following phrase:  The current dynasty was founded by Sharif Hussein ibn Ali, who was appointed as Sharif and Emir of Mecca by Sultan Abdul Hamid II in 1908, then in 1916  after concluding a secret agreement with the British  was proclaimed King of Arab countries but only recognized as King of the Hejaz after initiating the Arab Revolt against the Ottoman Empire. His sons Abdullah and Faisal assumed the thrones of Jordan and Iraq in 1921, and his first son Ali succeeded him in the Hejaz in 1924. Abdullah was assassinated in 1951, but his descendants continue to rule Jordan today. The other two branches of the dynasty did not survive; Ali was ousted by Ibn Saud after the British withdrew their support from Hussein in 192425, and Faisals grandson Faisal II was executed in the 