Li Anlan in Brick of the Tang Dynasty is the daughter of the Mohist giant Tian and the eldest son of Emperor Taizong.
Although Li Shimin didn't know about the existence of Li Anlan at first, Li Anlan spent the first ten years of her life wandering alone in the Jianghu, but her status as a princess of the Tang Dynasty could not be erased. Later, Li Anlan returned to Chang 'an, recognized his ancestors, and was named princess royal of Tang Dynasty by Li Yuan.
Xiangcheng princess said:
It is recorded in the Book of the New Tang Dynasty that the eldest daughter of Li Shimin of Emperor Taizong is Princess Xiangcheng, but Princess Xiangcheng has never been valued by Emperor Taizong because she is not a descendant. It was not until later that she stood out among the princesses with a cautious personality that Emperor Taizong noticed her eldest daughter. It is reported that Emperor Taizong also advocated the princess in the palace and the concubines in the harem to learn from Princess Xiangcheng.
Princess Xiangcheng has a gentle personality and abides by the etiquette in the palace, which won Li Shimin's love. If other princesses do something arrogant and disobedient, Li Shimin often takes Princess Xiangcheng as an example to educate other princesses. It can be seen that Princess Xiangcheng, as the eldest daughter of Li Shimin, was deeply gratified by her father and played an exemplary role among all the sisters.