The Jordanians have the historical claim on protecting Mecca and Medina as well.
Ali and Fatima had two sons: Al-Hassan and Al-Hussein. The direct descendants of their eldest son, Hassan, are known as "Sharifs" (nobles), while the descendants of Hussein are called "Sayyids" (lords). The Royal Family of Jordan, the Hashemites, is descended through the Sharifian branch of lineage.
Various Sharifian families ruled over the Hijaz region in Western Arabia between 967 and 1201 CE. Moreover, King Abdullah II's branch of the Hashemite Family ruled the holy city of Mecca from 1201 CE until 1925 CE, although they recognized the sovereignty of the Ottoman Sultan in 1517. This makes King Abdullah II the head of the Hashemite Family, which, in addition to being directly descended from the Prophet, also represents over one thousand years of rule in the area, and almost two thousand years of recorded presence in the holy city of Mecca.
uring the Great Arab Revolt of 1916, King Abdullah II's great-great-grandfather, Al-Hussein bin Ali, Sharif of Mecca and King of the Arabs (later he also became known as King of the Hijaz), led the liberation of Arab lands from their domination by the Ottoman Turks. After freeing the lands of Jordan, Lebanon, Palestine, Iraq, Syria and the Hijaz, Sharif Hussein's son Abdullah I assumed the throne of Transjordan, while his second son Faisal assumed the throne of Syria and later Iraq. The Emirate of Transjordan was founded on April 11, 1921, and became the Hashemite Kingdom of Jordan upon formal independence from Britain in 1946.
During his thirty-year reign, King Abdullah I presided over the forging of a viable and durable state out of a tribal, nomadic society. He developed the institutional foundations of modern Jordan, establishing democratic legitimacy by promulgating Jordan's first Organic Law in 1928 (the basis for today's Constitution), and holding elections for its first assembly in 1929. While guiding Jordan's development into a modern state, King Abdullah I negotiated a series of treaties with Britain which earned increasing freedom for Jordan, culminating in full independence from Britain on May 25, 1946. link