The wars with Champa and the Mongols left ??i Vi?t exhausted and bankrupt. The Tr?n household was consequently overthrown by one of its have court docket officers, H??Quý Ly. H??Quý Ly compelled the last Tr?n emperor to abdicate and assumed the throne in 1400. He altered the nation title to ??i Ngu and moved the capital to Tây ?ô, Western Capit