黎昭統帝
In 1786, king of Tây Sơn [[Nguyễn Nhạc]] wanted to recover the old territory of Nguyễn lords captured by the Trịnh. He ordered [[Nguyễn Huệ]] and Nguyễn Hữu Chỉnh to undertake the task. Nhạc warned Huệ not to attack [[Đàng Ngoài|Bắc Hà]]. However, Chỉnh convinced Huệ to do so, under the slogan "Destroy the Trịnh and aid the Lê" (, ) that would help them gain support from Bắc Hà people. Trịnh army and the Three Prefectures Army were quickly defeated. Trịnh Tông committed suicide. Emperor [[Lê Hiển Tông|Cảnh Hưng]] died of old age shortly after and passed the throne to Lê Duy Kỳ (emperor [[Lê Chiêu Thống|Chiêu Thống]]).