Voravongsa I was king of Lan Xang reigning from 1575–1579 with the regnal name Samdach Brhat-Anya Chao Brhatasena Vora Varman Raja Sri Sadhana Kanayudha but he is commonly referred to in both Lao and Burmese chronicles by his title of Maha Oupahat or Viceroy. Wikipedia