Phan Văn Lân
Phan Văn Lân was a general of Tây Sơn dynasty.
He joined the Tây Sơn army in early time. In 1787, Vũ Văn Nhậm led an army marched north into Tonkin. Lân and Ngô Văn Sở followed the army to assist him. Nhậm occupied Thăng Long, had Nguyễn Hữu Chỉnh executed, installed Lê Duy Cận as a puppet "Prince Regent". Sở and Lân regarded it as treason, and reported Nhậm's actions to Nguyễn Huệ. Huệ led an army marched north and had Nhậm executed. Huệ retreated from Tonkin, and left Ngô Văn Sở, Phan Văn Lân, Nguyễn Văn Tuyết, Nguyễn Văn Dụng, Trần Thuận Ngôn and Ngô Thì Nhậm in Thăng Long to watch Cận.
Qing China invaded Vietnam to reinstall the deposed emperor Lê Chiêu Thống of Lê dynasty. Ngô Văn Sở decided to retreat, but was opposed by Lân. He then led a troop to attack Chinese army in Nguyệt Đức River, but was utterly beaten and fled back to Thăng Long. Sở concealed the fact and retreated to Tam Điệp, and sent Nguyễn Văn Tuyết to Phú Xuân to ask support.
Huệ then led an army march north, and defeated Chinese army in Ngọc Hồi and Đống Đa. Lân also played an important role in this battle.
