The wars with Champa and also the Mongols left ??i Vi?t exhausted and bankrupt. The Tr?n family was consequently overthrown by among its individual court docket officials, H??Quý Ly. H??Quý Ly compelled the final Tr?n emperor to abdicate and assumed the throne in 1400. He changed the region title to ??i Ngu and moved the cash to Tây ?ô, Western