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.
Chinese sovereign
Hàn Guāng Wǔ Dì is equivalent to Dōng Hàn Guāng Wǔ Dì since he was the founder of the Eastern (dōng) Han Dynasty. All dōng (east)-xī (west), nán (south)-běi (north), qián (former)-hòu (later) conventions were invented only by past or present historiographers for denoting a new era of a dynasty. They were never used during that era.