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.
Cao Jun (Duke of Fan)
In 220, Cao Jun's half-brother Cao Pi became the first emperor of the Cao Wei state after usurping the throne from Emperor Xian, the last emperor of the Han dynasty. The following year, he honoured Cao Jun with the posthumous title "Duke An of Fan" (樊安公). Cao Jun's son and heir, Cao Kang, became the Duke of Fan. In 222, Cao Kang's title was changed to "Duke of Ji" (薊公), and to "Duke of Tunliu" (屯留公) in 223. Cao Kang died in 237 during the reign of Cao Pi's successor, Cao Rui, and was posthumously honoured as "Duke Ding" (定公). He was succeeded by his son, Cao Chen (曹諶), as the Duke of Tunliu. Throughout the reigns of the subsequent Wei emperors, the number of taxable households in Cao Chen's dukedom increased until it reached 1,900.