Li Chéngqián (李承乾) (618 – 5 January 645), courtesy name Gaoming (高明), formally Prince Min of Hengshan (恆山愍王), was a crown prince of the Chinese Tang Dynasty. He was Emperor Taizong's oldest son and first crown prince, but was replaced later by his younger brother Li Zhi (the eventual Emperor Gaozong).
|Crown Prince of the Tang Dynasty|
|Reign||September 626-April 643|
|Died||5 January 645(aged 26–27)|
|Issue||Li Xiang 李象 (Father of Li Shizhi)|
|Father||Emperor Taizong of Tang|
Li Chengqian was created crown prince in 626 at the age of eight (by East Asian reckoning), after his father became emperor on 4 September. In his youth, he had a reputation for good judgment, but was also said to be suffering from a foot illness. Later on, he was said to be frivolous, favoring Tujue customs instead of studying about ways to rule an empire. He lost favor in Emperor Taizong's eyes to a younger brother, Li Tai the Prince of Wei. (Both had the same mother, Emperor Taizong's wife Empress Zhangsun.) In 643, in fear that Emperor Taizong was about to depose him in favor of Li Tai, he plotted with the general Hou Junji to overthrow Emperor Taizong. The plot was discovered, and he was deposed and reduced to commoner rank, but Emperor Taizong, believing that Li Tai to be responsible for Li Chengqian's downfall, appointed yet another son, Li Zhi (also by Empress Zhangsun), crown prince instead. Li Chengqian was exiled, and died in exile in January 645, as a commoner under house arrest. He was posthumously granted an imperial prince title during the reign of his grandnephew, Emperor Xuanzong after his grandson Li Shizhi became chancellor.
Li Chengqian was born in 619, not long after his grandfather Emperor Gaozu established Tang Dynasty in 618. He was the first son of Emperor Gaozu's son Li Shimin the Prince of Qin and Li Shimin's wife Princess Zhangsun, and was named Chengqian because he was born at Chengqian Hall (承乾殿). In 620, he was created the Prince of Hengshan, at the same time that his younger brothers Li Ke and Li Tai were also created princes.
Early years as crown princeEdit
In 626, Li Shimin seized power after ambushing and killing his older brother Li Jiancheng, the Crown Prince, and younger brother Li Yuanji, the Prince of Qi, at the Incident at Xuanwu Gate, and later that year, Emperor Gaozu yielded the throne to him (as Emperor Taizong). Emperor Taizong created Li Chengqian's mother Princess Zhangsun empress, and created Li Chengqian crown prince. In 630, in order to show honor to the chancellor Du Ruhui in Du's illness, Emperor Taizong sent Li Chengqian to personally visit Du. Later that year, Emperor Taizong formally made Li Chengqian in charge of listening to legal appeals where the litigants were dissatisfied with the judgments made by the executive bureau of the government (尚書省, Shangshu Sheng), putting a layer of appeal between the executive bureau and the emperor himself. The senior officials Li Gang (李綱) and Xiao Yu were made his senior advisors, and whenever Li Chengqian were officially hearing governmental matters, he would be accompanied by Li Gang and the chancellor Fang Xuanling. In 631, he held his official rite of passage. In winter 632, after a feast Emperor Taizong held for Emperor Gaozu (then with the title Taishang Huang (retired emperor)) at Emperor Gaozu's Da'an Palace (大安宮), Emperor Taizong wanted to hold up Emperor Gaozu's litter personally; Emperor Gaozu disallowed it, but had Li Chengqian take Emperor Taizong's place in doing so. Meanwhile, by 633, Li Chengqian was said to be beginning to favor frivolous games, and his staff members Yu Zhining, Du Zhenglun, and Kong Yingda often advised him to not do so. Emperor Taizong approved of Yu, Du, and Kong, and rewarded them.
On 25 June 635, Emperor Gaozu died. Emperor Taizong observed a period of mourning for him. During that time, Li Chengqian formally ruled on important matters of state for about 45 days, after which Emperor Taizong resumed his imperial authority, but still had Li Chengqian rule on more minor issues. It was around this time that Li Chengqian was said to have good judgment and logical abilities. From this point on, whenever Emperor Taizong was away from the capital Chang'an, Li Chengqian would be in charge of the imperial government.
In 636, Li Chengqian's mother Empress Zhangsun was seriously ill. Li Chengqian suggested to her that a general pardon be declared and that people be encouraged to become Buddhist or Taoist monks to try to gain divine favor. Empress Zhangsun disallowed it, disfavoring pardons herself and knowing that Emperor Taizong also disapproved of Buddhism and Taoism. Li Chengqian then discussed the matter with Fang, who relayed his request to Emperor Taizong. Emperor Taizong wanted to declare a general pardon, but was dissuaded by Empress Zhangsun. She died later that year, on 28 July.
Struggles against Li TaiEdit
By this point, Li Tai, who was considered intelligent and talented in literature, had gained Emperor Taizong's favor over Li Chengqian—so much so that in 638, Emperor Taizong let it slip out that it was not impossible that an imperial prince would one day be his officials' overlord, when Wang Gui suggested that high level officials not be required to bow to imperial princes other than the crown prince. Li Chengqian, meanwhile, was allowing his games to interfere with his studies, despite urgings of his advisor Zhang Xuansu (張玄素). At one point, after Zhang expressed disapproval of his playing drums, Li Chengqian destroyed his drums, but was not otherwise listening to Zhang's advice.
In 641, When Emperor Taizong visited the eastern capital Luoyang, Li Chengqian was in charge of Chang'an, assisted by the chancellor Gao Shilian (his granduncle). Around that time, Li Chengqian had gathered a group of guards who served as his personal assassins, and when he grew angry at the earnest urgings by Yu Zhining, he sent his assassins Zhang Shizheng (張師政) and Gegan Chengji (紇干承基) to kill Yu, although Zhang and Gegan, when they saw that Yu was observing a mourning period for his mother, relented and did not kill Yu. Meanwhile, in 642, with Li Tai engaging many scholars on staff, Emperor Taizong had increased Li Tai's stipend so much that it exceeded Li Chengqian's. The official Chu Suiliang, whose advice Emperor Taizong usually listened to, advised against this, believing that this would bring conflict. Instead, Emperor Taizong removed all limits on Li Chengqian's spending, causing Li Chengqian to be wasteful. When Zhang advised against wastefulness, Li Chengqian became so displeased that he sent servants to attack Zhang with large whips, almost killing him. With Emperor Taizong's favors for Li Tai apparent, there began to be a faction that supported Li Chengqian and a faction that supported Li Tai at court. In order to quell the speculations about Li Tai's replacing Li Chengqian, Emperor Taizong made the honored chancellor Wei Zheng Li Chengqian's senior advisor, but this failed to end the rumors. The rumors also continued to persist even after Emperor Taizong publicly declared in spring 643 that even if Li Chengqian died (as Li Chengqian's foot illness—the historical accounts did not specify what kind of illness—was well-known among the officials), Li Chengqian's son Li Xiang (李象) would inherit the throne, not another prince.
It was said that Li Chengqian favored music, women, and hunting, and was wasteful in pursuing these things, but at the same time maintained a veneer of virtue to the outside world. Among his guards, he often took on Tujue customs, wearing Tujue clothes and spoke Tujue, often engaging in Tujue-style camping.[excessive citations] Meanwhile, several other acts of Li Chengqian were also drawing Emperor Taizong's ire. Homosexuality. Li Chengqian had favored a young man that he nicknamed Chengxin (稱心, meaning, "satisfying my heart"), probably in a sexual relationship. He had also favored Taoist monks Qin Ying (秦英) and Wei Lingfu (韋靈符), and he had them use magic—acts that were considered extremely disapproved among imperial subjects. When Emperor Taizong found out about these things, he put Chengxin and the Taoist monks all to death. Li Chengqian, believing that it was Li Tai who informed Emperor Taizong, became increasingly angry with Li Tai, and he, in sadness over Chengxin's death, also refused to attend imperial gatherings for months, while establishing a shrine for Chengxin within his palace.
Removal and deathEdit
Meanwhile, Li Tai was having officials who were in his faction often spread news about Li Tai's abilities, trying to create an impression among the people that Li Tai should be crown prince. Li Chengqian was becoming increasingly insecure, and he began to discuss within his own faction what to do. His closest allies included his uncle Li Yuanchang (李元昌) the Prince of Han, the imperial guard commander Li Anyan (李安儼), his cousin Zhao Jie (趙節), and Du Ruhui's son and his brother-in-law Du He (杜荷). Eventually, he also invited the major general Hou Junji, whose son-in-law Helan Chushi (賀蘭楚石) was Li Chengqian's guard commander, into the plot, and considered overthrowing Emperor Taizong.
In spring 643, however, Li Chengqian's younger brother Li You (李祐) the Prince of Qi, resentful of the head of his household, Quan Wanji (權萬紀), killed Quan and then rebelled. Li You was soon defeated and captured, and when Emperor Taizong investigated Li You's co-conspirators, Gegan Chengji was arrested and sentenced to death. Gegan, in order to save himself, revealed the plot. Emperor Taizong, in shock, convened the senior officials Zhangsun Wuji (Empress Zhangsun's brother), Fang Xuanling, Xiao Yu, and Li Shiji, as well as officials from the supreme court, the legislative bureau, and the examination bureau, to investigate, and the extent of the plot was revealed. When Emperor Taizong requested opinions on what to do with Li Chengqian, Lai Ji suggested sparing him, and Emperor Taizong agreed. On 29 April, he deposed Li Chengqian and reduced him to commoner rank, while ordering Li Yuanchang to commit suicide. Hou and the other conspirators were all executed.
Emperor Taizong initially told Li Tai that he would be created crown prince, but soon came to believe that Li Tai's machinations were responsible for Li Chengqian's downfall. When Emperor Taizong himself visited Li Chengqian, Li Chengqian told him:
- I was already crown prince, and what else could I be looking for. It is because Li Tai often conspired against me, and I had to therefore discuss with my staff how to save myself. Those overly ambitious people thus suggested that I commit treason. If you create Li Tai crown prince, you are falling into his trap.
Emperor Taizong agreed, and as Zhangsun Wuji proposed creating another son by Empress Zhangsun, Li Zhi the Prince of Jin, crown prince, Emperor Taizong did so, putting Li Tai under house arrest as well and reducing his title, although keeping the title a princely title. In fall 643, Emperor Taizong exiled both Li Chengqian and Li Tai—in the case of Li Chengqian, to Qian Prefecture (黔州, modern southeastern Chongqing).
Around the new year 645, Li Chengqian died at Cheng Prefecture. Emperor Taizong ordered that he be buried with the honors due a duke. After Li Chengqian's grandson Li Shizhi became chancellor during the reign of Li Chengqian's grandnephew Emperor Xuanzong, he often spoke to Emperor Xuanzong in defense of his grandfather. In 736, Emperor Xuanzong posthumously honored Li Chengqian the Prince of Hengshan—a title that he previously held—and gave him the posthumous name of Min (愍, meaning "suffering").
|Ancestors of Li Chengqian|
- However, this date does not reconcile well with historical records also stating that his younger brother Li Tai was 35 (by East Asian reckoning) when he died in Jan 653 -- which would make Li Tai's birth year 619. As Li Tai was clearly younger and born of the same mother as Li Chengqian, the dates cannot be both correct, but it is not clear which, if either, date was correct. Further, given that Li Chengqian was Emperor Taizong's first-born son and Li Tai was the fourth-born son, they could not be twins. According to Li Tai's grave epitaph, Li Tai was actually born in 620.
- Volume 197 of Zizhi Tongjian recorded that Li Chengqian died on the renyin day of the 12th month of the 18th year of the Zhenguan era of Tang Taizong's reign. This date corresponds to 5 Jan 645 on the Gregorian calendar. [(贞观十八年)十二月，...壬寅，故太子承乾卒于黔州,...]
- Volume 191 of Zizhi Tongjian recorded that Taizong assumed the throne on the jiazi day of the 8th month of the 9th year of the Wude era of Tang Gaozu's reign. This date corresponds to 4 Sep 626 on the Gregorian calendar. [(武德九年八月)甲子，太宗即皇帝位于东宫显德殿...] Li's biographies in volume 76 of Old Book of Tang and volume 80 of New Book of Tang recorded that he was made crown prince when Taizong became emperor.
- According to Gaozu's biography in Old Book of Tang, he died on the gengzi day of the 5th month of the 9th year of the Zhenguan era of Tang Taizong's reign. This date corresponds to 25 Jun 635 on the Gregorian calendar. ([贞观)九年五月庚子，高祖大渐，....是日，崩于太安宫之垂拱前殿，年七十。] Old Book of Tang, vol.1.
- Volume 194 of Zizhi Tongjian recorded that Zhangsun died on the jimao day in the 6th month of the 10th year of the Zhenguan era of Tang Taizong's reign. This date corresponds to 28 Jul 636 in the Gregorian calendar. [(贞观十年六月)己卯，崩于立政殿。]
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- Volume 197 of Zizhi Tongjian recorded that Chengqian was deposed on the yiyou day of the 4th month of the 17th year of the Zhenguan era of Taizong's reign. This date corresponds to 29 Apr 643 on the Gregorian calendar. [(贞观十七年四月)乙酉，诏废太子承乾为庶人]
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