In ancient times, the queen was called the official queen, and the two concubines were called the Eastern Queen and the Western Queen. Wu Meiniang is a talented person in Li Shimin's harem. After being taken back to the palace by Li Zhi, he was named Zhaoyi, neither the Eastern Queen nor the Western Queen, until he gave birth to the Prince. Later, she was directly named as the queen by Zhao Yi-level Li Zhi, that is, the Queen of the Imperial Palace.