Trieu Duong Vuong or Zhao Yang Di
Nam Việt's senior prime minister, Quan Thai-pho, Lữ Gia (Lü Jia) sent out the army to meet the Hán at the border to repel the invasion. The army was strong, but smaller in number. Meanwhile, inside the country, the word has spread that Triệu Dương Vương was in the hand of the Han emperor. The Việt feared that if they resist, their Emperor would be harm by the hands of the Han Emperor. The country was now in a state of chaos. When the Han kept sending more and more reinforcements for his army at the border, the Nam Việt's army was unable to hold their position. Lữ Gia saw that Nam Việt must have a new king in order to calm its people and to stir up Nam Việt patriotism to fight. Triệu Kiến Ðức, Triệu Minh Vương's eldest son from one of his concubines, took the burden of leading his people to war. Triệu Kiến Ðức took the title of Triệu Dương Vương (Emperor Zhao Yang) (ca. 111 BC).
With its king being too young and inexperienced and leading an untrained, however brave army, Nam Việt was only able to keep their stronghold for a while. Hán crushed the Nam Việt army along with Lữ Gia (Lü Jia) and his King (Trieu Duong Vuong), both resisted until the end. Nam Việt as the prefecture of Giao Chỉ (Jiaozhi) of the Han Empire, was divided into nine districts. Han dynasty would dominate Jiaozhi until the revolt of the Trưng Sisters.
Read more about this topic: Trieu Dynasty