The wars with Champa and also the Mongols still left Đại Việt fatigued and bankrupt. The Trần family was in turn overthrown by one among its own court officials, H�?Quý Ly. H�?Quý Ly compelled the last Trần emperor to abdicate and assumed the throne in 1400. He transformed the country name to Đại Ngu and moved the cash to Tây Đ�