Hussein ibn Ali was the last of the Hashemites to rule the Hejaz. Hashemite rule over the region had existed in unbroken sucession since 1201. During World War I, Hussein was initially allied with the Ottomans and Germany, but was convinced by T. E. Lawrence ("Lawrence of Arabia") to rebel. Hussein was an important leader in the Arab Revolt against the Ottomans. Hussein allied himself with both the French and British, and intended to form a unified Arab state that would stretch from Syria to Yemen.
In the aftermath of the war, the Arabs found themselves freed from the Ottomans but under the control of France and Great Britain. The sons of Hussein were made the kings of Jordan, Syria and Iraq. However, the monarchy in Syria was abruptly ended when the French were given control over the nation.
When Hussein declared himself king of the Hejaz, he also declared himself king of all Arabs. This brought him into conflict with Ibn Saud, and Saud defeated Hussein in 1924. He was then forced to flee to Cyprus. He went on to live in Amman, Jordan, where his son Abdullah was king. Hussein died there in 1931. His son Faisal was made King of Iraq.