Chinese emperors family tree (early)
Emperor Xian, the last emperor of the Han dynasty, was a descendant of the first emperor Liu Bang. Lasting for over 400 years (the first to last for more than a century), the Han Dynasty is regarded as one of the golden ages of Chinese history. The Han Dynasty was interrupted by the reign of the usurper Wang Mang, who declared the Xin dynasty (9–23 AD); on this basis, the Han Dynasty is generally divided into the Western Han (206 BC – 9 AD and 23–25 AD) and the Eastern Han (25–220 AD). The rulers of the Shu Han, one of the three successor states to the Han Dynasty during the Three Kingdoms period, were descended from the Han imperial family, and considered themselves a continuation of the Han Dynasty; they are included below.
Nanyue
Liu Bang, after years of war with his rivals, established the Han dynasty and reunified Central China in 202 BC. The fighting had left many areas of China depopulated and impoverished, and feudal lords continued to rebel while the Xiongnu made frequent incursions into northern Chinese territory. The precarious state of the empire therefore forced the Han court to treat Nanyue initially with utmost circumspection. In 196 BC, Liu Bang, now Emperor Gaozu, sent Lu Jia (陸賈, not to be confused with Lü Jia 呂嘉) to Nanyue in hopes of obtaining Zhao Tuo's allegiance. After arriving, Lu met with Zhao Tuo and is said to have found him dressed in Yue clothing and being greeted after their customs, which enraged him. A long exchange ensued, wherein Lu is said to have admonished Zhao Tuo, pointing out that he was Chinese, not Yue, and should have maintained the dress and decorum of the Chinese and not have forgotten the traditions of his ancestors. Lu lauded the strength of the Han court and warned against a kingdom as small as Nanyue daring to oppose it. He further threatened to kill Zhao's kinsmen in China proper and destroying their ancestral graveyards, as well as coercing the Yue into deposing Zhao himself. Following the threat, Zhao Tuo then decided to receive Emperor Gaozu's seal and submit to Han authority. Trade relations were established at the border between Nanyue and the Han kingdom of Changsha. Although formally a Han subject state, Nanyue seems to have retained a large measure of "de facto" autonomy.