Editing History of Qatar (section)

===Usfurids and Ormus control (1253–1515)===
{{Main|Usfurids|Ormus}}
Much of Eastern Arabia was controlled by the [[Usfurids]] in 1253, but control of the region was later seized by the prince of [[Ormus]] in 1320.<ref>{{cite book|last=Larsen|first=Curtis|title=Life and Land Use on the Bahrain Islands: The Geoarchaeology of an Ancient Society (Prehistoric Archeology and Ecology series)|url=https://books.google.com/books?id=Q65mRSPPU6UC|publisher=University of Chicago Press|year=1984|isbn=978-0226469065|page=54}}</ref> Qatar's pearls provided the kingdom with one of its main sources of income.<ref name="mohamed"/> The Portuguese defeated the Ormus by 1507 following the destruction of their fleet by [[Afonso de Albuquerque]]'s forces. However, Albuquerque's captains grew rebellious, and he was compelled to abandon the Ormus island. Ultimately, in 1515, [[Manuel I of Portugal|King Manuel I]] killed Sultan Saifuddin's [[vizier]] Reis Hamed, pressuring the Sultan to become a vassal of King Manuel.<ref>{{cite book|last=Olson|first=James S.|title=Historical Dictionary of European Imperialism|url=https://books.google.com/books?id=uyqepNdgUWkC|publisher=Greenwood|page=289|year=1991|isbn=978-0313262579}}</ref>