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.
Emperor Gaozu of Han
After establishing the Han dynasty, Emperor Gaozu appointed princes and vassal kings to help him govern the Han Empire and gave each of them a piece of land. There were seven vassal kings who were not related to the imperial clan: Zang Tu, the King of Yan; Hán Xin, the King of Hán; Han Xin, the King of Chu; Peng Yue, the King of Liang; Ying Bu, the King of Huainan; Zhang Er, the King of Zhao; Wu Rui, the King of Changsha. However, later, the emperor became worried that the vassal kings might rebel against him because they after all had no blood relations with him. Han Xin and Peng Yue were (falsely) accused of treason, arrested and executed along with their families. Ying Bu and Zang Tu rebelled against him but were defeated and killed. Only Wu Rui and Zhang Er were left.