Emperor Gaozu of Han
Emperor Gaozu of Han (; 256 BCE – 1 June 195 BCE), born Liu Bang (劉邦), was the founder and first emperor of the Han dynasty, reigning from 202 – 195 BCE. He was one of the few dynasty founders in Chinese history who was born in a peasant family.
Nanyue
Changsha was, at the time, a feudal kingdom that was part of Han China. Its territory comprised most of modern Hunan Province and part of Jiangxi Province. When Emperor Gaozu of Han enfeoffed Wu Rui as the first King of Changsha, he also gave him the power to govern Nanhai, Xiang, and Guiling Commanderies, which caused strife between Changsha and Nanyue from the start. The Han China-Nanyue border was essentially that of Changsha, and therefore was constantly fortified on both sides. In terms of policies, because the Kingdom of Changsha had no sovereignty whatsoever, any policy of the Han court toward Nanyue was by default also Changsha's policy.