The wars with Champa and the Mongols remaining ??i Vi?t exhausted and bankrupt. The Tr?n household was in turn overthrown by among its possess court officers, H??Quý Ly. H??Quý Ly compelled the final Tr?n emperor to abdicate and assumed the throne in 1400. He improved the country title to ??i Ngu and moved the capital to Tây ?ô, Western Funds,