The wars with Champa along with the Mongols still left ??i Vi?t fatigued and bankrupt. The Tr?n family members was subsequently overthrown by one among its have court docket officers, H??Quý Ly. H??Quý Ly compelled the final Tr?n emperor to abdicate and assumed the throne in 1400. He altered the nation name to ??i Ngu and moved the cash to Tây ?