Kings of the Han dynasty
The kings from other dynasties (, "yìxìng wáng") were mostly remnants of the rebellion against the Qin dynasty. Following the Dazexiang Uprising, many noblemen rose in rebellion. Heirs, pretenders, and warlords called themselves "kings" and claimed sovereignty as continuations of the six states previously suppressed by Qin. Among these, Chu was the most powerful. However, its rightful ruler Huai II was assassinated on the orders of the warlord Xiang Yu and the 18 Kingdoms Xiang had formed rose in rebellion against him. Liu Bang, king of Han, ultimately defeated Chu and established the new Han dynasty. The kings who had sided with him were then permitted to maintain their titles and lands. A few other kingdoms were also formed by Liu Bang for generals and favorites.
List of emperors of the Han dynasty
From the Shang to Sui (581–618 AD) dynasties, Chinese rulers (both kings and emperors) were referred to by their posthumous names in records and historical texts. Temple names, first used during the reign of Emperor Jing of Han ("r". 157–141 BC), were used exclusively in later records and historical texts when referring to emperors who reigned during the Tang (618–907 AD), Song (960–1279 AD), and Yuan (1271–1368 AD) dynasties. During the Ming (1368–1644 AD) and Qing (1644–1911 AD) dynasties, a single era name was used for each emperor's reign and became the preferred way to refer to Ming and Qing emperors in historical texts.