The wars with Champa and the Mongols left Đại Việt fatigued and bankrupt. The Trần household was in turn overthrown by among its possess court officers, H�?Quý Ly. H�?Quý Ly forced the final Trần emperor to abdicate and assumed the throne in 1400. He changed the nation name to Đại Ngu and moved the funds to Tây Đô, Western Cash