The wars with Champa plus the Mongols left ??i Vi?t exhausted and bankrupt. The Tr?n household was subsequently overthrown by one of its possess court docket officials, H??Quý Ly. H??Quý Ly pressured the final Tr?n emperor to abdicate and assumed the throne in 1400. He improved the region title to ??i Ngu and moved the cash to Tây ?ô, Western C