西山朝
The Tây Sơn dynasty (, 家西山, Hán Việt: 西山朝 "Tây Sơn triều") was a ruling dynasty of Vietnam, founded in the wake of a rebellion against both the Nguyễn lords and the Trịnh lords before subsequently establishing themselves as a new dynasty. The Tây Sơn were led by three brothers, referred to by modern Vietnamese historians as the Tây Sơn brothers because of their origin in the district of Tây Sơn.