大越史記全書
According to "Đại Việt sử ký toàn thư", actually Hồ Quý Ly wanted to overthrow Thuận Tông but before his death, the Retired Emperor Trần Nghệ Tông made Quý Ly promise him supporting the Emperor therefore Hồ Quý Ly decided to force Thuận Tông to resign before taking over the throne from the new emperor. After the coronation, Thiếu Đế changed the era name to Kiến Tân (建新, 1398-1400).