The wars with Champa and also the Mongols left ??i Vi?t fatigued and bankrupt. The Tr?n relatives was in turn overthrown by one of its have courtroom officials, H??Quý Ly. H??Quý Ly forced the last Tr?n emperor to abdicate and assumed the throne in 1400. He transformed the place title to ??i Ngu and moved the capital to Tây ?ô, Western Cash, no