Uparaja

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Uparaja or Ouparath, also Ouparaja (Burmese: ဥပရာဇာ [ṵpəjàzà]; Khmer: ឧបរាជ, UNGEGN: Ŏbâréach, ALA-LC: Uparāj [ʔoparaːc]; Thai: อุปราช, RTGS: Upparat; Lao: ອຸປຮາດ, Oupahat), is a noble title reserved for the viceroy in India and the Buddhist dynasties in Burma, Cambodia, Laos and Thailand, as well as some of their minor tributary kingdoms.