Liu Yuan (Han Zhao)
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Liu Yuan (劉淵, died 29 August 310),
courtesy name A courtesy name ( zh, s=字, p=zì, l=character), also known as a style name, is an additional name bestowed upon individuals at adulthood, complementing their given name. This tradition is prevalent in the East Asian cultural sphere, particula ...
Yuanhai (元海), also known by his
posthumous name A posthumous name is an honorary Personal name, name given mainly to revered dead people in East Asian cultural sphere, East Asian culture. It is predominantly used in Asian countries such as China, Korea, Vietnam, Japan, Malaysia and Thailand. ...
as the Emperor Guangwen of Han (Zhao) (漢(趙)光文帝) was the founding
emperor The word ''emperor'' (from , via ) can mean the male ruler of an empire. ''Empress'', the female equivalent, may indicate an emperor's wife (empress consort), mother/grandmother (empress dowager/grand empress dowager), or a woman who rules ...
of the
Xiongnu The Xiongnu (, ) were a tribal confederation of Nomad, nomadic peoples who, according to ancient Chinese historiography, Chinese sources, inhabited the eastern Eurasian Steppe from the 3rd century BC to the late 1st century AD. Modu Chanyu, t ...
-led
Han-Zhao The Han-Zhao ( zh, s=汉赵, t=漢趙, p=Hàn Zhào; 304–329 AD), or Former Zhao ( zh, s=前赵, t=前趙, p=Qián Zhào), was a dynastic state of China ruled by the Liu ( Luandi) clan of Chuge-Xiongnu ethnicity during the Sixteen Kingdoms per ...
dynasty of China during the
Sixteen Kingdoms The Sixteen Kingdoms (), less commonly the Sixteen States, was a chaotic period in Chinese history from AD 304 to 439 when northern China fragmented into a series of short-lived dynastic states. The majority of these states were founded b ...
period. Due to
Tang dynasty The Tang dynasty (, ; zh, c=唐朝), or the Tang Empire, was an Dynasties of China, imperial dynasty of China that ruled from 618 to 907, with an Wu Zhou, interregnum between 690 and 705. It was preceded by the Sui dynasty and followed ...
naming taboo A naming taboo is a cultural taboo against speaking or writing the given names of exalted persons, notably in China and within the Chinese cultural sphere. It was enforced by several laws throughout Imperial China, but its cultural and possibly ...
, he is referred to by his courtesy name as Liu Yuanhai (劉元海) in the ''
Book of Jin The ''Book of Jin'' is an official Chinese historical text covering the history of the Jin dynasty (266–420), Jin dynasty from 266 to 420. It was compiled in 648 by a number of officials commissioned by the imperial court of the Tang dynasty, ...
''. With the dissolution of the Southern Xiongnu in 216, the last vestiges of their power were divided into Five Divisions in
Bing province Bingzhou, or Bing Province, was a location in ancient China. According to legend, when Yu the Great (–2100 BC) tamed the flood, he divided the land of China into the Nine Provinces. Historical texts such as the ''Rites of Zhou'', and "Treatise ...
around modern-day
Shanxi Shanxi; Chinese postal romanization, formerly romanised as Shansi is a Provinces of China, province in North China. Its capital and largest city of the province is Taiyuan, while its next most populated prefecture-level cities are Changzhi a ...
. Liu Yuan was born into the aristocracy of the Five Divisions and was sent to the Chinese capital,
Luoyang Luoyang ( zh, s=洛阳, t=洛陽, p=Luòyáng) is a city located in the confluence area of the Luo River and the Yellow River in the west of Henan province, China. Governed as a prefecture-level city, it borders the provincial capital of Zheng ...
as a hostage during his youth, where he became highly
sinicized Sinicization, sinofication, sinification, or sinonization (from the prefix , 'Chinese, relating to China') is the process by which non-Chinese societies or groups are acculturated or assimilated into Chinese culture, particularly the language, ...
and later held several government offices under the
Western Jin dynasty Western may refer to: Places *Western, Nebraska, a village in the US * Western, New York, a town in the US * Western Creek, Tasmania, a locality in Australia * Western Junction, Tasmania, a locality in Australia *Western world, countries that ...
. As the
War of the Eight Princes The War of the Eight Princes, Rebellion of the Eight Kings, or Rebellion of the Eight Princes ( zh, t=八王之亂, s=八王之乱, p=bā wáng zhī luàn, w=pa wang chih luan) was a series of coups and civil wars among kings/princes (Chinese: '' ...
weakened Jin authority in northern China, Liu Yuan was called upon by the Five Divisions to lead their rebellion, and in 304, he declared independence from the Jin and founded the Han-Zhao dynasty, one of the first of the Sixteen Kingdoms. His declaration, along with the founding of the Cheng-Han dynasty in
Sichuan Sichuan is a province in Southwestern China, occupying the Sichuan Basin and Tibetan Plateau—between the Jinsha River to the west, the Daba Mountains to the north, and the Yunnan–Guizhou Plateau to the south. Its capital city is Cheng ...
that same year, marked the formal end of the Western Jin's brief unification of China following the
Three Kingdoms The Three Kingdoms of Cao Wei, Shu Han, and Eastern Wu dominated China from AD 220 to 280 following the end of the Han dynasty. This period was preceded by the Eastern Han dynasty and followed by the Jin dynasty (266–420), Western Jin dyna ...
period. Liu Yuan proclaimed himself a direct descendant of the Southern Xiongnu ''chanyus'' and, by extension, the
Han dynasty The Han dynasty was an Dynasties of China, imperial dynasty of China (202 BC9 AD, 25–220 AD) established by Liu Bang and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–206 BC ...
, since his ancestors had married Han princesses through the practice of ''
heqin ''Heqin'', also known as marriage alliance, refers to the historical practice of Chinese monarchs marrying princesses—usually members of minor branches of the ruling family—to rulers of neighboring states. It was often adopted as an appeasem ...
''. His state of Han (renamed Zhao in 319) was initially depicted as a restoration of the Han dynasty, and as anti-Jin sentiment continued to grow, Liu Yuan soon found himself leading a coalition of Han Chinese and tribal rebels in northern China. Though he would not live to see it, his family and generals would eventually drive the Jin dynasty out of the north.


Family background

According to official history, Liu Yuan was a member of
Xiongnu The Xiongnu (, ) were a tribal confederation of Nomad, nomadic peoples who, according to ancient Chinese historiography, Chinese sources, inhabited the eastern Eurasian Steppe from the 3rd century BC to the late 1st century AD. Modu Chanyu, t ...
nobility, as a descendant of the first great ''chanyu'' in Xiongnu history,
Modu Chanyu Modu () was the son of Touman and the founder of the empire of the Xiongnu. He came to power by ordering his men to kill his father in 209 BCE. Modu ruled from 209 to 174 BCE. He was a military leader under his father Touman and later ''chanyu ...
, who, along with their people, had long been loyal vassals to the
Han dynasty The Han dynasty was an Dynasties of China, imperial dynasty of China (202 BC9 AD, 25–220 AD) established by Liu Bang and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–206 BC ...
and to its successor states
Cao Wei Wei () was one of the major Dynasties in Chinese history, dynastic states in China during the Three Kingdoms period. The state was established in 220 by Cao Pi based upon the foundations laid by his father Cao Cao during the end of the Han dy ...
and Jin. In late Wei or early Jin times, the Xiongnu nobles claimed that they descended from the Han dynasty's ruling Liu clan also — through a princess who had married Modu Chanyu – and therefore changed their family name to Liu. Liu Yuan's father, Liu Bao, was a son of one of the last Southern Xiongnu ''chanyus'',
Yufuluo Chizhi Shizhu Hou (; d. 195), personal name Yufuluo (於夫羅), was a puppet ''chanyu'' of the Southern Xiongnu during the late Han dynasty. In 188, he was appointed ''chanyu'' by the Han court following the murder of his father Qiangqu and wo ...
, and the nephew of the last Southern Xiongnu ''chanyu'' Huchuquan (before
Cao Cao Cao Cao (; ; ; 15 March 220), courtesy name Mengde, was a Chinese statesman, warlord, and poet who rose to power during the end of the Han dynasty (), ultimately taking effective control of the Han central government. He laid the foundation f ...
abolished the office in 216 and divided the Xiongnu into the Five Divisions); Liu Bao had the command of the Left Tribe (左部). Liu Yuan's mother Lady Huyan appeared to be from a noble family, and was in probability Liu Bao's wife, rather than a concubine. As the Five Divisions settled down in Bingzhou (modern southern
Shanxi Shanxi; Chinese postal romanization, formerly romanised as Shansi is a Provinces of China, province in North China. Its capital and largest city of the province is Taiyuan, while its next most populated prefecture-level cities are Changzhi a ...
), that was likely where Liu Yuan was born and raised.


As a Jin subject

As powerful nobles from the Five Divisions were usually encouraged or pressured by Cao Wei and Jin authorities to send their sons to the capital
Luoyang Luoyang ( zh, s=洛阳, t=洛陽, p=Luòyáng) is a city located in the confluence area of the Luo River and the Yellow River in the west of Henan province, China. Governed as a prefecture-level city, it borders the provincial capital of Zheng ...
(both to encourage them to further
sinicization Sinicization, sinofication, sinification, or sinonization (from the prefix , 'Chinese, relating to China') is the process by which non-Chinese societies or groups are acculturated or assimilated into Chinese culture, particularly the language, ...
and as collateral for their loyalty), Liu Yuan was sent to Luoyang to reside and to study traditional Chinese literature. He became well known for his studies, particularly of the Zou version of
Confucius Confucius (; pinyin: ; ; ), born Kong Qiu (), was a Chinese philosopher of the Spring and Autumn period who is traditionally considered the paragon of Chinese sages. Much of the shared cultural heritage of the Sinosphere originates in the phil ...
' ''
Spring and Autumn Annals The ''Spring and Autumn Annals'' is an ancient Chinese chronicle that has been one of the core Chinese classics since ancient times. ''The Annals'' is the official chronicle of the State of Lu, and covers a 242-year period from 722 to 481&nbs ...
'' and of the military strategies of
Sun Tzu Sun Tzu (; zh, t=孫子, s=孙子, first= t, p=Sūnzǐ) may have been a Chinese General, military general, strategist, philosopher, and writer who lived during the Eastern Zhou period (771–256 BC). Sun Tzu is traditionally credited as the au ...
and
Wu Qi Wu Qi (, 440–381 BC) was a Chinese military general, philosopher, and politician during the Warring States period. Biography Born in the Wey (state), State of Wey (), he was skilled in leading armies and military strategy. He had served in th ...
. The key Jin official Wang Hun became impressed with him, and Wang Hun's son Wang Ji became a close friend of Liu Yuan's. Wang Hun believed Liu to be general material and repeatedly recommended Liu Yuan to Emperor Wu, but Kong Xun and Empress Yang Zhi's uncle Yang Ji suspected Liu for his Xiongnu ancestry and persuaded Emperor Wu against giving Liu military commands during campaigns against Eastern Wu and the
Xianbei The Xianbei (; ) were an ancient nomadic people that once resided in the eastern Eurasian steppes in what is today Mongolia, Inner Mongolia, and Northeastern China. The Xianbei were likely not of a single ethnicity, but rather a multiling ...
rebel Tufa Shujineng. Eventually, even Emperor Wu's brother
Sima You Sima You (; 246 – 27 April 283), courtesy name Dayou (大猷), posthumously known as Prince Xian of Qi (齐献王), was an imperial prince of the Western Jin dynasty of China. He was the second son of Sima Zhao, a regent of the Cao Wei state ...
the Prince of Qi, impressed and fearful of Liu's abilities, encouraged Emperor Wu to have Liu executed, but Wang Hun persuaded Emperor Wu that it would be wrong. When Liu Bao died in 279, Emperor Wu permitted Liu Yuan to take over command of the Left Tribe. In 289, he was transferred to Commander of the North Tribe. As the commander of the tribes, Liu became known for his fair administration of laws and willingness to listen to ideas, and also for his willingness to spread his wealth. This led the ambitious people in his region, not only of the Five Divisions but of many Han clans, to flock to him. After Emperor Wu's death and succession by Emperor Hui, the
regent In a monarchy, a regent () is a person appointed to govern a state because the actual monarch is a minor, absent, incapacitated or unable to discharge their powers and duties, or the throne is vacant and a new monarch has not yet been dete ...
Yang Jun made Liu the commander of the Five Divisions, but toward the end of the subsequent regency of Emperor Hui's wife, Empress Jia Nanfeng, Liu was removed from that position due to his inability to stop one of his countrymen's rebellions. Later, when Sima Ying the Prince of Chengdu became the military commander at Yecheng, he invited Liu to be one of his subordinate military commanders, and Liu accepted the invitation.


Independence from Jin

In the midst of the
War of the Eight Princes The War of the Eight Princes, Rebellion of the Eight Kings, or Rebellion of the Eight Princes ( zh, t=八王之亂, s=八王之乱, p=bā wáng zhī luàn, w=pa wang chih luan) was a series of coups and civil wars among kings/princes (Chinese: '' ...
, in 304, the Five Divisions nobles, led by the commander of the North Tribe, Liu Xuan, who was tired of misrule by the Jin, secretly plotted independence. They sent a messenger to secretly offer Liu Yuan the title of Grand ''Chanyu''. Liu Yuan told Sima Ying, who was concerned about an attack from Wang Jun, whose troops were reinforced with
Xianbei The Xianbei (; ) were an ancient nomadic people that once resided in the eastern Eurasian steppes in what is today Mongolia, Inner Mongolia, and Northeastern China. The Xianbei were likely not of a single ethnicity, but rather a multiling ...
and
Wuhuan The Wuhuan (, < Eastern Han Chinese: *''ʔɑ-ɣuɑn'', <
Han-Zhao The Han-Zhao ( zh, s=汉赵, t=漢趙, p=Hàn Zhào; 304–329 AD), or Former Zhao ( zh, s=前赵, t=前趙, p=Qián Zhào), was a dynastic state of China ruled by the Liu ( Luandi) clan of Chuge-Xiongnu ethnicity during the Sixteen Kingdoms per ...
" or "Former Zhao") and further declared that, as a Han descendant, he would succeed to the Han throne, and claimed the title of the King of Han—deliberately choosing a title that had been previously held by the Han dynasty's founder, Emperor Gaozu. He reestablished the worship of eight Han emperors—Emperor Gaozu, Emperor Wen, Emperor Wu, Emperor Xuan,
Emperor Guangwu Emperor Guangwu of Han (; 15 January 5 BC29 March AD 57), born Liu Xiu (), courtesy name Wenshu (), was a Chinese monarch. He served as an emperor of the Han dynasty by restoring the dynasty in AD 25, thus founding the Eastern Han dynasty. He ...
, Emperor Ming, Emperor Zhang, and
Liu Bei Liu Bei (, ; ; 161 – 10 June 223), courtesy name Xuande (), was a China, Chinese warlord in the late Han dynasty#Eastern Han, Eastern Han dynasty who later became the founding Emperor of China, emperor of Shu Han, one of the Three Kingdoms of ...
(Emperor Zhaolie).


Reign

For those who had previously been impressed with Liu's abilities, his reign was somewhat of a let down. He spent great energy trying to restore the Han system of government, but was unable to quickly expand his sphere of influence. He set his capital at Lishi (in modern
Lüliang Lüliang ( zh, s=吕梁 , t=呂梁 , p=Lǚliáng), also spelled as Lvliang or Lyuliang, is a prefecture-level city in western Shanxi province, People's Republic of China. It borders Shaanxi province across the Yellow River to the west, Jinzhong ...
,
Shanxi Shanxi; Chinese postal romanization, formerly romanised as Shansi is a Provinces of China, province in North China. Its capital and largest city of the province is Taiyuan, while its next most populated prefecture-level cities are Changzhi a ...
), but his control of territory became limited to that local region. His forces were often able to achieve victories over Jin forces but were unable to hold cities. In 305, after a famine, he relocated to Liting (in modern
Changzhi Changzhi ( zh, s=长治) is a prefecture-level city in the southeast of Shanxi Province, China, bordering the provinces of Hebei and Henan to the northeast and east, respectively. Historically, the city was one of the 36 administrative areas ( ...
, Shanxi). As years went by, however, the various agrarian rebel generals who were resisting Jin rule, whether ethnically Wu Hu or Han, often chose to come under Liu Yuan's Han banner. Chief among these were the Chinese general Wang Mi and the Jie general
Shi Le Shi Le (; 274 –17 August 333), courtesy name Shilong, also known by his posthumous name as the Emperor Ming of Later Zhao, was the founding emperor of the Jie-led Later Zhao dynasty of China. He was initially sold as a slave by Western Jin ...
(both of whom declared loyalty to Han in 307), who generally only nominally submitted to Liu's orders while maintaining separate power structures but who also did appear to genuinely respect and fear Liu. Liu largely entrusted troops under his own control to his son Liu Cong, the Prince of Chu and his nephew Liu Yao, the Prince of Shi'an. The four generals, while not being able to hold cities, were generally able to rove throughout northern and central China unimpeded by Jin forces, defeating most Jin generals who opposed them. In 308, Wang's troops advanced on the Jin capital, Luoyang, but was repelled. That year, after capturing more territory, Liu Yuan moved his capital to Puzi (in modern
Linfen Linfen () is a prefecture-level city in the southwest of Shanxi province, People's Republic of China, China, bordering Shaanxi province to the west. Linfen City is located in the southern part of Shanxi Province, with the remaining branches of T ...
,
Shanxi Shanxi; Chinese postal romanization, formerly romanised as Shansi is a Provinces of China, province in North China. Its capital and largest city of the province is Taiyuan, while its next most populated prefecture-level cities are Changzhi a ...
) and declared himself emperor, signifying an even more complete break from the Jin. In 309, he moved the capital once more to Pingyang (also in modern Linfen). By this time, Liu Cong and Wang Mi controlled all of southern Shanxi for Han, and they attacked Luoyang again, but were repelled. In 310, Liu Yuan grew ill, and he created his second wife Lady Shan
empress The word ''emperor'' (from , via ) can mean the male ruler of an empire. ''Empress'', the female equivalent, may indicate an emperor's wife (empress consort), mother/grandmother (empress dowager/grand empress dowager), or a woman who rules ...
and his oldest son Liu He (by his first wife Empress Huyan—who appeared to have died by this point)
crown prince A crown prince or hereditary prince is the heir apparent to the throne in a royal or imperial monarchy. The female form of the title, crown princess, is held by a woman who is heir apparent or is married to the heir apparent. ''Crown prince ...
. When he died later that year, Liu He became emperor. However, a week later, he was overthrown and killed by Liu Cong, who then became emperor.


Physical appearance

In the ''Book of Wei'', Chinese author
Wei Shou Wei Shou () (506–572), courtesy name Boqi (伯起), was a Chinese people, Chinese author born in Quyang County in Julu Commandery (today Xingtai, Hebei) who served under the Northern Qi, Northern Qi dynasty.(魏收,字伯起,小字佛助, ...
notes that Liu Yuan was over six feet tall and that he had strands of red hair in his long
beard A beard is the hair that grows on the jaw, chin, upper lip, lower lip, cheeks, and neck of humans and some non-human animals. In humans, beards are most commonly seen on pubescent or adult males, though women have been observed with beards ...
.


Skepticism over lineage

Some modern Chinese academics, such as Tang Changru and Chen Yong, cast doubt on Liu Yuan's lineage from the Southern Xiongnu ''chanyus'', with Tang in particularly presenting three reasons. Firstly, Liu Bao's lifespan was unusually long, with the assumption that he was 20 years old when he became Tuqi King in 195 and dying during Tufa Shujineng rebellion sometime around 274; he would have been in his 70s when Liu Yuan was born in the 250s. Secondly, the Leader (or Commander) of the Left Tribe in 272 was Li Ke and not Liu Bao according to Emperor Wu's entry in the ''Jinshu'', but Liu Yuan's entry states that he inherited the position from his father. Thirdly, Liu Yuan was from Xinxing Commandery (north of present-day
Xinzhou Xinzhou, ancient name Xiurong (), is a prefecture-level city occupying the north-central section of Shanxi Province in the People's Republic of China, bordering Hebei to the east, Shaanxi to the west, and Inner Mongolia to the northwest. As ...
,
Shanxi Shanxi; Chinese postal romanization, formerly romanised as Shansi is a Provinces of China, province in North China. Its capital and largest city of the province is Taiyuan, while its next most populated prefecture-level cities are Changzhi a ...
), which would have placed him in the North Tribe rather than the Left Tribe. Furthermore, the ''Jinshu'' states that after becoming Leader of the Left Tribe, he was later transferred to become Commander of the North Tribe, and when Sima Ying permitted him to return to the Xiongnu, he was given the title of North ''Chanyu'' rather than the vacant title of South ''Chanyu'', which was held by his supposed ancestors. Tang hypothesized that these discrepancies were due to Liu Yuan actually being from the Chuge people (also known as Xiuchuge), which is supported by the fact that he and his family members are referred to as "Chuge" in several passages from relevant records. The Chuge are theorized to be the descendants of King Xiutu's tribe, who surrendered to the Han dynasty in 121 BC, much earlier than the Southern Xiongnu. From the
Hexi Corridor The Hexi Corridor ( ), also known as the Gansu Corridor, is an important historical region located in the modern western Gansu province of China. It refers to a narrow stretch of traversable and relatively arable plain west of the Yellow River's O ...
, the Chuge spread out throughout northern China and became the most powerful and prestigious tribe among the Xiongnu within China. In 188 AD, they killed the Southern Xiongnu ''chanyu'',
Qiangqu Qiangqu (; r. 179–188 AD) was the Western Wise Prince, successor to Huzheng, and ''chanyu'' of the Southern Xiongnu from 179 to 188 AD. Qiangqu's reign coincided with a troublesome time for the Han Empire, and few records address Chin ...
and exiled his son
Yufuluo Chizhi Shizhu Hou (; d. 195), personal name Yufuluo (於夫羅), was a puppet ''chanyu'' of the Southern Xiongnu during the late Han dynasty. In 188, he was appointed ''chanyu'' by the Han court following the murder of his father Qiangqu and wo ...
. After the Five Divisions were established in Bingzhou, they were all annexed by Liu Bao of the Chuge in the 250s. It is possible that Liu Yuan and Han-Zhao historians fabricated his ties to the Luandi clan for more legitimacy by presenting his rule as both a continuation of the Southern Xiongnu ''chanyus'' and a restoration of the Han dynasty. However, another modern scholar, Zhou Weizhou, challenged Tang's hypothesis, asserting that the three discrepancies he pointed out could easily be explained and that the records clearly states that Liu Yuan was a descendant of the Southern Xiongnu Chanyu. Firstly, it is not beyond the realm of possibility that Liu Bao was a child when he was appointed Tuqi King and had Liu Yuan when he was in his 50s. Li Ke was also described as a "general of Liu Meng (Leader of the Central Tribe)" in Hu Fen's biography in the ''
Book of Jin The ''Book of Jin'' is an official Chinese historical text covering the history of the Jin dynasty (266–420), Jin dynasty from 266 to 420. It was compiled in 648 by a number of officials commissioned by the imperial court of the Tang dynasty, ...
'', so there is no consensus on whether he was the Leader (or Commander) of the Left Tribe or merely a general. For his last point, Zhou explains that the offices of the Southern Xiongnu, including that of the ''chanyu'' family, were mostly empty titles and that their positions could be easily changed by the Jin court as a method of divide and rule, though they could occasionally be sent back to their respective tribes to recruit and garrison soldiers. While Zhou agrees on the origins of the Chuge, he also believes that the reason for their prevalence was because there were no longer any "pureblooded Xiongnu" at the time, and that Chuge had become a blanket term particularly for the sinicized Xiongnu.


Family

Consorts and their respective issue(s): * Empress Huyan, of the Huyan clan (呼延皇后), daughter of Huyan Yi (呼延翼) ** Liu He, Prince of Liang (劉和 梁王, d. 310), first son * Empress Shan, of the Dan clan (單皇后), daughter of Dan Zheng (單徵) **Liu Ai Prince of Beihai (劉乂 北海王, d. 317), seventh son * Furen, of the Zhang clan (张夫人) **Liu Cong (劉恭, d. 310), second son ** Liu Cong, the Prince of Chu (劉聰 楚王, d. 31 August 318), fourth son *Unknown **Third son **Liu Yu, the Prince of Qi (劉裕 齐王, d. 310), fifth son **Liu Long, the Prince of Lu (劉隆 鲁王, d. 310), sixth son


References

{{DEFAULTSORT:Liu, Yuan 310 deaths 4th-century Chinese monarchs Former Zhao emperors Jin dynasty (266–420) generals People from Lüliang Year of birth unknown Generals from Shanxi Founders of Imperial Chinese dynasties Posthumous executions