Li Chengqian's brother
Li Chengqian's brothers were Li Tai and Li Zhi.
Li Chengqian's younger brother
Li Chengqian's younger brother was Li Zhi. Li Chengqian was the eldest son of Emperor Taizong of the Tang Dynasty. He was made the crown prince, but was eventually deposed and exiled to Qianzhou. Li Zhi became the crown prince. The search results did not provide more information about their specific relationship and interaction.
Is Li Chengqian Li Zhi's biological brother?
Yes, according to the information provided, Li Chengqian was Li Zhi's biological brother. They were the sons of Emperor Taizong and Empress Zhangsun. Li Chengqian was once conferred the title of Crown Prince, but was demoted to a commoner because of his rebellion. In the end, Li Zhi became the Crown Prince and ascended the throne as Emperor Gaozong of Tang Dynasty.
Li Chengqian's Children
Li Chengqian's children had three sons, namely Li Xiang, Li Jue, and Li Yi.
Li Chengqian's heir
Li Chengqian had a total of three sons, namely Li Xiang, Li Jue, and Li Yi. Li Xiang had held many positions in the Tang Dynasty, including Huaizhou and Ezhou. Li Jue was the grandson of Li Shimin, Emperor Taizong of the Tang Dynasty. He once served as the governor of Ezhou and was posthumously awarded the title of envoy to Qingzhou's military, Qingzhou governor and Zong Zhengqing. As for the relevant information about Doctor Li, there was no relevant information at the moment.
Li Chengqian's Ending
Li Chengqian's ending in the play "Celebrating Years" was to be deposed as a commoner and exiled to Qianzhou. In 644, he died in exile. Emperor Taizong of the Tang Dynasty stopped court for him for several days and buried him according to the etiquette of the Duke of the State. This was his ending in the movie.