Tây Sơn dynasty
peasant rebellion then the decentralized imperial dynasty in Vietnam, 1778 to 1802
The Tây Sơn dynasty (Vietnamese: [təj ʂəːn]; Vietnamese: Nhà Tây Sơn or Triều Tây Sơn; chữ Hán: 朝西山; Chữ Nôm: 茹西山), officially Đại Việt (大越), was an imperial dynasty of Vietnam. It originated in a revolt led by three peasant brothers with the surname Nguyễn, rebelling against the Lê dynasty, Trịnh lords and Nguyễn lords (no relation). The Tây Sơn would later be succeeded by the Nguyễn dynasty.
The Tây Sơn dynasty ended the century-long war between the Trịnh and Nguyễn families, overthrew the Lê dynasty, and united the country for the first time in 200 years. They acknowledged Qing suzerainty and gained recognition from the Qianlong Emperor as the legitimate rulers of Vietnam. Under the most prominent of the Tây Sơn brothers Nguyễn Huệ (Emperor Quang Trung) Vietnam experienced several years of relative peace and prosperity. But Quang Trung died relatively young at the age of 40 and his successor Cảnh Thịnh, aged 9, was unable to prevent civil conflict among the Tây Sơn court which allowed the last Nguyễn lord Nguyễn Ánh to retake the south of Vietnam, extinguish the Tây Sơn and establish the Nguyễn dynasty.
Name
The Tây Sơn dynasty was named after the Tây Sơn district in Bình Định province, the birthplace of the three brothers who established the dynasty. The name "Tây Sơn" means "western mountains" from Chinese 西山 Xīshān where 西 xi means west and 山 shan means mountain.
History
Background
In the 18th century, Vietnam was de jure ruled by the Lê dynasty, but real power lay in the hands of two warring families, the Trịnh lords of the north who ruled from the imperial court in Thăng Long and the Nguyễn lords in the south, who ruled from their capital Huế.
This brief starts where responsible research should: with the source description of “Tây Sơn dynasty” as peasant rebellion then the decentralized imperial dynasty in Vietnam, 1778 to 1802. Everything that follows is an evidence route, not borrowed authority.
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The record creator and administrative purpose are central evidence, because official documentation reflects both action and institutional priorities. The source revision retrieved here is dated Sep 19, 2026. The linked authority identifier is Q1034173. The Library of Congress control number is sh98007803. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
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This entry incorporates text from “Tây Sơn dynasty” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.