The wars with Champa as well as Mongols still left ??i Vi?t fatigued and bankrupt. The Tr?n relatives was in turn overthrown by amongst its possess court officers, H??Quý Ly. H??Quý Ly forced the final Tr?n emperor to abdicate and assumed the throne in 1400. He improved the state name to ??i Ngu and moved the funds to Tây ?ô, Western Capital, n