Indochina c. 1010 Advert. ??i Vi?t lands in yellow, Champa polities in green and Khmer Empire in purple. Ngô Quy?n in 938 declared himself king, but died following only 6 several years. His premature Dying after a short reign resulted in a power struggle to the throne, leading to the region's initially key civil war, the upheaval from the Twelve