Trịnh Khải
Đoan Nam Vương Trịnh Khải was one of the Trịnh lords in northern Vietnam. He fought against the armies of the infant Trịnh Cán to win leadership of the northern warlords, but was himself defeated by the Tây Sơn rebel leader, later emperor Nguyễn Huệ. Trịnh Khải later committed suicide while were arrested by the Tây Sơn troops. He was succeeded by the last of the lords, Trịnh Bồng.
