|History of China|
|3 Sovereigns and 5 Emperors|
|Xia Dynasty 2100–1600 BCE|
|Shang Dynasty 1600–1046 BCE|
|Zhou Dynasty 1045–256 BCE|
|Spring and Autumn period|
|Warring States period|
|Qin Dynasty 221 BCE–206 BCE|
|Han Dynasty 206 BCE–220 CE|
|Three Kingdoms 220–280|
|Wei, Shu and Wu|
|Jin Dynasty 265–420|
|Western Jin||16 Kingdoms
|Southern and Northern Dynasties
|Sui Dynasty 581–618|
|Tang Dynasty 618–907|
|(Second Zhou 690–705)|
|5 Dynasties and
|Northern Song||W. Xia|
|Yuan Dynasty 1271–1368|
|Ming Dynasty 1368–1644|
|Qing Dynasty 1644–1911|
|Republic of China 1912–1949|
Chinese sovereign is the ruler of a particular period in ancient China. Several titles and naming schemes have been used throughout history.
Emperor title 
Of the San Huang Wu Di, the three first of them were called 皇 (huang, "god-king") and the five last were called 帝 (di, "sage-king"), which can translate as either emperor, demigod human, or a superhuman. This title may have been used in the Shang and Xia dynasties, though oracle bones were found from the Shang Dynasty showing the title 王 (wáng, "king").
King title 
The king or wang (王 wáng) was the Chinese head of state from the Zhou Dynasty to the Qin Dynasty. After that, wang (sometimes translated "prince") became merely the head of the hierarchy of noble ranks. The title was commonly given to members of the Emperor's family and could be inherited. A poem from about 2500 years ago said "普天之下,莫非王土.率土之賓,莫非王臣."which roughly translate to "under the sky, nothing isn't the king's land; the people who lead the lands, no one isn't the king's magistrates." It may have been used in the Xia and Shang dynasties, where oracle bones were found with the title wang.
Emperor of China title 
The characters Huang (皇 huáng "god-king") and Di (帝 dì "sage king") had been used separately and never consecutively (see Three August Ones and Five Emperors). The character was reserved for mythological rulers until the first emperor of Qin (Qin Shi Huang), who created a new title Huangdi (皇帝 in pinyin: huáng dì) for himself in 221 BCE, which is commonly translated as Emperor in English. This title continued in use until the fall of the Qing dynasty in 1911.
Although formally the Son of Heaven (天子, pinyin: tiānzǐ), where the Heaven refers to the celestial heavens or the universe, the power of the emperor varied between emperors and dynasties, with some emperors being absolute rulers and others being figureheads with actual power lying in the hands of court factions, eunuchs, the bureaucracy or noble families. In principle, the title of emperor was transmitted from father to son via primogeniture, as endorsed by Confucianism. However, there are many exceptions to this rule. For example, because the Emperor usually had many concubines, the first born of the queen (i.e. the wife) is usually the heir apparent. However, Emperors could elevate another more favoured child or the child of a favourite concubine to the status of Crown Prince. Disputes over succession occurred regularly and have led to a number of civil wars. In the Qing dynasty, primogeniture was abandoned altogether, with the designated heir kept secret until after the Emperor's death.
Unlike the Japanese emperor for example, Chinese political theory allowed for a change of dynasty as imperial families could be replaced. This is based on the concept of "Mandate of Heaven". The theory behind this was that the Chinese emperor acted as the "Son of Heaven". As the only legitimate ruler, his authority extended to "All under heaven" and had neighbors only in a geographical sense. He holds a mandate to which he had a valid claim to rule over (or to lead) everyone else in the world as long as he served the people well. If the ruler became immoral, then rebellion is justified and heaven would take away that mandate and give it to another. This single most important concept legitimized the dynastic cycle or the change of dynasties regardless of social or ethnic background. This principle made it possible for dynasties founded by non-noble families such as Han Dynasty and Ming Dynasty or non-ethnic Han dynasties such as the Mongol-led Yuan Dynasty and Manchu-led Qing Dynasty. It was moral integrity and benevolent leadership that determined the holder of the "Mandate of Heaven." Every dynasty that self-consciously adopted this administrative practice powerfully reinforced this Sinocentric concept throughout the history of imperial China. Historians noted that this was one of the key reasons why imperial China in many ways had the most efficient system of government in ancient times.
Finally, it was generally not possible for a female to succeed to the throne and in the history of China there has only been one reigning Empress, Wu Zetian (624-705 CE) who usurped power under the Tang dynasty.
How to read the titles of a Chinese sovereign 
All sovereigns are denoted by a string of Chinese characters.
- Hàn Gāo Zǔ Liú Bāng (漢 高祖 劉邦)
- Táng Tài Zōng Lǐ Shì Mín (唐 太宗 李世民)
- Hòu Hàn Gāo Zǔ Liú Zhī Yuǎn (後漢 高祖 劉知遠)
- Hàn Guāng Wǔ Dì Liú Xiù (漢 光武帝 劉秀)
The first character(s) are the name of the dynasty or kingdom. e.g. Hàn, Táng, Wèi and Hòu Hàn.
Then follow the characters of their family and given names. e.g. Liú Bāng, Lǐ Shì Mín, Cáo Cāo, Liú Zhī Yuǎn and Liú Xiù.
In contemporary historical texts, the string including the name of dynasty and temple or posthumous names is sufficient enough as a clear reference to a particular sovereign.
e.g. Hàn Gāo Zǔ
Note that Wèi Wǔ Dì Cáo Cāo was never a sovereign in his own right but his son was. Thus his imperial style of Wǔ Dì was added only after his son had ascended to the throne. Such cases were common in Chinese history, i.e., the first emperor of a new dynasty often accorded posthumous imperial titles to his father or sometimes even further paternal ancestors.
Rules of thumb and tips 
All sovereigns starting from the Tang Dynasty are contemporarily referred to using the temple names. They also had posthumous names that were less used, except in traditional historical texts. The situation was reversed before Tang as posthumous names were contemporarily used.
e.g. The posthumous name of Táng Tài Zōng Lǐ Shì Mín was Wén Dì (文帝)
If sovereigns since Tang were referenced using posthumous names, they were the last ones of their sovereignties or their reigns were short and unpopular.
e.g. Táng Āi Dì Lǐ Zhù (唐哀帝 李柷), also known as Táng Zhāo Xuān Dì (唐昭宣帝), was last emperor of the Tang Dynasty reigning from 904 to 907.
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.
Self-made titles 
Xiang Yu styled himself, Xīchǔ Bàwáng (“西楚霸王,” lit. Hegemon-King of Western Chu).
Foreign titles taken by Chinese rulers 
Some common conventions 
Here is a quick guide of the most common style of reference (but not a thorough explanation) in contemporary use. Using an emperor's different titles or styles is nevertheless considered correct but not as common.
- Emperors before the Tang dynasty: use dynasty name + posthumous names. e.g. Han Wu Di
- Emperors between Tang dynasty and Ming dynasty: use dynasty name + temple names e.g. Tang tai zong
- Emperors of the Ming and Qing dynasties: use era names (reign names) because most emperors had only one distinctive era name during their reign, e.g. the Kangxi Emperor (康熙 kāng xī) of Qing. The exceptions are the first two emperors of the Qing Dynasty, and Emperor Yīngzōng (英宗) of Ming, who had two era names.
- However, the use of era names makes many mistake these for the names of the emperors themselves, and many scholars therefore encourage a reversed wording for Ming and Qing emperors, e.g., the Kangxi Emperor, the Qianlong Emperor, et cetera. To be more precise, and clear in English, one could use: the Kangxi era Emperor, etc.
- Overrides rules 1 to 3: If there is a more common convention than using posthumous, temple or era names, then use it. Examples include Wu Zetian (the only female emperor in the Chinese history).
- Since all legitimate rulers of China after Qin Shi Huang can be titled Emperor of China, in English they can be referred to by "Emperor of" and the name of his respective dynasty after the temple or posthumous name. e.g.
- Han wudi = Emperor wudi of Han Dynasty
- Tang taizong = Emperor Taizong of Tang Dynasty
- Some scholars prefer using the Wade-Giles romanization instead of the Pinyin but the above formats still hold. e.g. Han Wu Di = Wu-ti Emperor of Han Dynasty.
If you prefer better clarification and do not want to bother with all those "names," please refer to each dynasty, of which the specific convention is shown on top of its sovereigns.
See also 
- Yap, Joseph P. (2009). "Official Titles and Institutional Terms - Qin and Han" pp612–620 and Chapter 1. pp 38–39 in "Wars With The Xiongnu - A Translation From Zizhi tongjian" . AuthorHouse. ISBN 978-1-4490-0605-1
China has a certain amount of these and is a populated society.