Li Zhi is a few years younger than Li Chengqian

Li Zhi was nine years younger than Li Chengqian.

Li Zhi and Li Chengqian were brothers. They were the sons of Emperor Taizong and Empress Zhangsun. However, because Li Chengqian was demoted for rebellion, Li Zhi became the crown prince and eventually ascended the throne to become Emperor Gaozong of Tang Dynasty. Li Chengqian was the eldest son of Emperor Taizong of the Tang Dynasty and was conferred the title of Crown Prince. However, due to a series of events that led to his personality changing, Li Shimin began to pay attention to the King of Wei, Li Tai. Li Chengqian prepared to rebel, but was demoted to a commoner after being informed. Li Shi Min had originally intended to make Li Tai the Crown Prince, but when he learned that Li Chengqian's rebellion was because Li Tai had a plot against the Crown Prince, he was unwilling to hand the throne to such a person. Therefore, after the ministers discussed, they made Li Zhi the Crown Prince.

Li Zhi and Li Chengqian were brothers. They were the sons of Emperor Taizong and Empress Zhangsun. Li Chengqian was originally the Crown Prince, but he was demoted because of his rebellion. Li Zhi became the Crown Prince and finally ascended the throne to become Tang Gaozong.

Li Chengqian and Li Zhi were brothers. They were the sons of Emperor Taizong and Empress Zhangsun. Li Chengqian was originally the Crown Prince, but he was demoted because of his rebellion. Li Zhi became the Crown Prince and finally ascended the throne to become Tang Gaozong.

The exact number of years Li Chengqian was older than Li Zhi was not mentioned. Therefore, I don't know how many years Li Chengqian is older than Li Zhi.

Li Chengqian, Li Zhi, and Li Tai were the three sons of Li Shimin, Emperor Taizong of the Tang Dynasty. Li Chengqian was Taizong's eldest son and had once been made Crown Prince, but he had lost this position because of his misbehavior. Li Tai was Taizong's second son and was considered the most suitable candidate to inherit the throne because he was intelligent, studious, and accomplished in literature. However, due to his overly radical attitude, he did not become the Crown Prince in the end. On the contrary, Li Zhi became the Crown Prince and eventually inherited the throne. Li Zhi was regarded as kind-hearted, intelligent, studious, upright, and deeply favored by Taizong. Therefore, according to the information provided, Li Zhi was the final candidate to become the Crown Prince and inherit the throne.

According to the information provided, Li Chengqian, Li Zhi, and Li Tai were the three sons of Emperor Taizong of the Tang Dynasty, Li Shimin. Li Chengqian was once made Crown Prince, but he lost this position because of his misbehavior. Li Tai was considered the most suitable candidate to inherit the throne because he was smart, studious, and accomplished in literature. However, due to his overly radical attitude, he did not become the Crown Prince in the end. On the contrary, Li Zhi became the Crown Prince and eventually inherited the throne. Li Zhi was regarded as kind-hearted, intelligent, studious, upright, and deeply favored by Taizong. Therefore, according to the information provided, Li Zhi was the final candidate to become the Crown Prince and inherit the throne.

During the reign of Zhenguan, Li Chengqian was deposed as the crown prince. According to the documents provided, Li Chengqian plotted a coup in the 17th year of Zhenguan and was deposed as a commoner by Emperor Taizong of the Tang Dynasty. This move was to prevent the tragedy of the three brothers, Li Chengqian, Li Tai, and Li Zhi, similar to the incident at the Black Tortoise Sect. In order to protect his three sons, Taizong exiled Li Chengqian to Qianzhou, and Zhao Jie, Du He, and Hou Junji, who participated in the coup, were executed. Li Chengqian died of depression in Zhenguan for 19 years.

Yes, Li Zhi and Li Chengqian were brothers born from the same mother, Empress Zhangsun.

Li Chengqian and Li Zhi were not the same person. Li Chengqian and Li Zhi were brothers. They were the sons of Emperor Taizong of the Tang Dynasty, Li Shimin, 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. Therefore, based on the information provided, it could be confirmed that Li Chengqian and Li Zhi were different people.