The wars with Champa and the Mongols remaining ??i Vi?t exhausted and bankrupt. The Tr?n family members was in turn overthrown by one of its have courtroom officials, H??Quý Ly. H??Quý Ly forced the last Tr?n emperor to abdicate and assumed the throne in 1400. He altered the country identify to ??i Ngu and moved the money to Tây ?ô, Western Cas