Li Chengqian was the eldest son of Emperor Taizong of the Tang Dynasty, Li Shimin. His fate was closely related to Li Shimin. Li Shimin ascended the throne after the incident at Xuanwu Gate and appointed Li Chengqian as the Crown Prince. He hoped that Li Chengqian would become a good Emperor and ensure the stability of the Li family. Li Shimin had poured a lot of effort and resources into cultivating Li Chengqian, and he attached great importance to his education. Li Chengqian was also a very obedient child. He worked hard to be a qualified Crown Prince and was praised by the officials. However, Li Chengqian's fate was far from satisfactory. He was deposed as Crown Prince and executed, probably because of his plot against Hou Junji. Li Chengqian's destiny was full of trickery and tragedy.

There was a time-travel novel called " Transmigrated to Li Chengqian's Son and Blocked Li Shimin ", which told the story of the protagonist transmigrating to the Tang Empire and becoming Li Chengqian's son, Li Xiang and Li Shimin. In this novel, Li Chengqian was about to be deposed, but his son, Li Xiang and Li Shimin, stepped forward and showed his smart and brave side. However, detailed information about Li Chengqian's specific achievements and performance was not provided in the search results. Therefore, the search results did not provide a clear answer to the specific situation of Li Chengqian and Li Shimin who had transmigrated to the Great Tang.
Li Chengqian was the eldest son of Emperor Taizong of the Tang Dynasty, Li Shimin. After Emperor Taizong of the Tang Dynasty ascended the throne, he was conferred the title of Crown Prince. When he was young, he was loved by his father and received the support and guidance of Lu Deming, Kong Yingda, Wei Zheng, and others. However, as he grew older, his behavior became bad. He was not loyal to his father and even sent assassins to assassinate his teacher. He had a conflict with his younger brother, Li Tai, and later conspired with others to assassinate Li Tai. Under the efforts of Emperor Taizong of the Tang Dynasty, he was deposed as a commoner and exiled to Qianzhou. After Li Chengqian passed away in Qianzhou, he was buried with the etiquette of the Duke of the State. As for the specific cause of his death, the search results did not provide relevant information, so it was impossible to know.
Li Chengqian was the eldest son of Emperor Taizong of the Tang Dynasty, Li Shimin. He was born in 619 and was granted the title of Crown Prince. When he was young, he received special attention and training from Li Shimin. He was praised as a smart and kind-hearted person. However, his fate changed after the incident at the Black Tortoise Sect. After Li Shimin became the emperor, in order to protect Li Chengqian, Li Zhi was made the crown prince. Li Chengqian was deposed as a commoner and exiled to Qianzhou. He died in 645 and was posthumously presented as the King of Hengshan and the Governor of Jingzhou. He was buried with the etiquette of a Duke. As for why Li Chengqian wanted to rebel, there was no clear information in the literature.
Li Chengqian (619 - 645 January 5) was the eldest son of Li Shimin, Emperor Taizong of the Tang Dynasty. His ancestral home was Longxi Chengji (now Qin 'an County, Gansu Province). After Emperor Taizong of the Tang Dynasty ascended the throne, he was appointed Crown Prince. He was intelligent and benevolent. However, due to his leg disease, he was unable to move. He did not agree with his father's teachings and even sent assassins to assassinate his teacher. He had a tense relationship with his brother, Li Tai, because Li Tai had the ambition to become the eldest son. In the 16th year of Zhenguan (642), after Li Chengqian failed to assassinate Li Tai, he joined forces with others to plot evil, but the matter was exposed. In the end, Emperor Taizong of the Tang Dynasty abolished his status as the crown prince and exiled him to Qianzhou. After his death, he was buried with the etiquette of a duke. His grandson, Li Shizhi, became the prime minister during the reign of Emperor Xuanzong.
Li Chengqian (619-January 5, 645) was the eldest son of Emperor Taizong of Tang Dynasty, Li Shimin. His ancestral home was Longxi Chengji (now Qin 'an County, Gansu Province). After Emperor Taizong of the Tang Dynasty ascended the throne, he was appointed Crown Prince. He was intelligent and benevolent. However, due to his leg disease, he was unable to move. He did not agree with his father's teachings and even sent assassins to assassinate his teacher. In the 16th year of Zhenguan (642), after he failed to assassinate his younger brother Li Tai, he plotted with others and the matter was exposed. Under the protection of Emperor Taizong, he was deposed as a commoner and exiled to Qianzhou. After Li Chengqian died, he was buried with the etiquette of the Duke of the State.
Li Chengqian was the eldest son of Emperor Taizong of the Tang Dynasty, Li Shimin. He was born in 619. Under Taizong's nurturing, he received an excellent Confucian education and displayed the quality of intelligence and benevolence. Taizong had placed great expectations on him and sent famous officials and great scholars to assist and teach him. However, Li Chengqian also faced some challenges during his growth. He was born with a foot disease, which made it difficult for him to move. At the same time, he also had some bad behaviors, such as disrespecting his teachers. In the 16th year of Zhenguan, after he failed to assassinate Li Tai, the king of Wei, he conspired with others to plot evil. He was deposed as a commoner and exiled to Qianzhou. After Li Chengqian passed away, he was buried with the etiquette of a duke. His grandson, Li Shizhi, became the Prime Minister and gave him the title of Governor of Jingzhou and Prince of Hengshan. In general, Li Chengqian received a good education under the expectations of Emperor Taizong of the Tang Dynasty, but he suffered a tragedy in his later life.
The crown prince of Emperor Taizong of the Tang Dynasty, Li Shimin, was Li Chengqian. Li Chengqian was Li Shimin's eldest son, born by Empress Zhangsun. When he was young, he was described as smart, kind and filial, and was loved by Li Shimin. However, the search results did not provide any detailed information about his performance and achievements.
The crown prince of Li Shimin of Tang Dynasty was Li Chengqian.
Li Chengqian (619 - 645 January 5) was the eldest son of Emperor Taizong of the Tang Dynasty, Li Shimin. He was born in Chengji, Longxi (now Qin 'an County, Gansu Province). As a minister of the imperial clan of the Tang Dynasty, Li Chengqian was granted the title of Prince of Zhongshan. When he was young, he had shown his intelligence and was appointed as the crown prince by Emperor Taizong of the Tang Dynasty. Li Chengqian was doted on by his father and received guidance from Lu Deming, Kong Yingda, Wei Zheng, and other famous officials. However, as he grew older, Li Chengqian became rebellious and misbehaved. He was criticized by the ministers. After his attempt to assassinate Li Tai failed, he plotted with others. After the matter was exposed, he was deposed as a commoner and exiled to Qian Prefecture. Finally, Li Chengqian died of depression in the 19th year of Zhenguan and was buried with the etiquette of the state.
In the end, Crown Prince Li Chengqian was deposed as a commoner. During the fight for the throne between Emperor Taizong of the Tang Dynasty and Li Tai of the Wei Dynasty, Li Chengqian was deposed due to his rebellion. This court dispute had an impact on the fate of the officials involved. Li Chengqian's epitaph also mentioned his experience of being humiliated by the Lord and deposed by the ministers. However, the information provided did not mention anything about his specific situation after that.