The wars with Champa plus the Mongols left ??i Vi?t fatigued and bankrupt. The Tr?n family was consequently overthrown by one of its possess court docket officers, H??Quý Ly. H??Quý Ly compelled the last Tr?n emperor to abdicate and assumed the throne in 1400. He transformed the state name to ??i Ngu and moved the capital to Tây ?ô, Western Fun