The wars with Champa plus the Mongols left ??i Vi?t exhausted and bankrupt. The Tr?n relatives was subsequently overthrown by considered one of its individual courtroom officials, H??Quý Ly. H??Quý Ly forced the final Tr?n emperor to abdicate and assumed the throne in 1400. He transformed the region title to ??i Ngu and moved the cash to Tây ?ô