The wars with Champa plus the Mongols left ??i Vi?t fatigued and bankrupt. The Tr?n family was in turn overthrown by considered one of its very own courtroom officials, H??Quý Ly. H??Quý Ly compelled the final Tr?n emperor to abdicate and assumed the throne in 1400. He modified the nation title to ??i Ngu and moved the capital to Tây ?ô, Wester