At the end of the Trần dynasty, Nguyễn Cảnh Chân worked as An Phủ Sứan office that's similar to governor of a state in Hoa Chau, Thua Thien-Hue. At that time the Trần government was in the hands of Hồ Quý Ly. In 1400, Hồ Quý Ly dethroned the last Trần emperor and declared himself emperor, establishing the Hồ dynasty and renaming the country from Đại Việt to Đại Ngu Hồ Quý Ly.
