Hồ Quý Ly
To facilitate his takeover, Hồ Quý Ly first had a new capital built, called Tây Đô (literally "Western Capital"). In 1399, he invited the current emperor, Trần Thuận Tông, to visit this new capital. After coaxing the emperor into relinquishing the throne to Prince An (a three-year-old child) he had Trần Thuận Tông imprisoned in a pagoda and later executed. Prince An "reigned" for one year until Hồ Quý Ly deposed him in 1400 and declared himself to be the new emperor.