The wars with Champa and the Mongols remaining ??i Vi?t fatigued and bankrupt. The Tr?n household was in turn overthrown by one among its personal courtroom officials, H??Quý Ly. H??Quý Ly pressured the final Tr?n emperor to abdicate and assumed the throne in 1400. He transformed the region identify to ??i Ngu and moved the cash to Tây ?ô, West