In ancient times, a woman's maiden name could not be revealed, and even her husband would only know it when she got married. Therefore, the second ceremony in the "six rites" of ancient marriage etiquette is "asking the name", that is, the man sends a matchmaker to the woman's house to ask her name and birthday, and then Buji folds her eight characters. Before that, the name of my daughter's family was absolutely confidential.
Even after marriage, few people in her husband's family will know his daughter-in-law's maiden name, so Jia Baoyu is called "Ke Qing" in A Dream of Red Mansions. Qin Keqing was surprised and thought, "My nickname has never been known here (in-laws' home). How could he know, how could he scream in his dream? "
Married people generally don't record a woman's maiden name in history books (only "XXX"), otherwise it is disrespectful. Many ancient women's names we know were actually fabricated by folk artists, such as Sun Shangxiang and Mulan.
In recent years, the game of the Three Kingdoms has become popular, and many ancient women have been given names, as well as fictional women like Malik Yunlu and Lu Lingqi, who are actually believed.
The emperor's family affairs are secret. The truth can be handed down, very few. Many things can't be verified. For example, whose descendant Cao Cao is can only be "unable to judge his birth and death"; The young emperor Cao Fang is Wei Mingdi's adopted son, while Cao Fang's biological father is unknown. Chen shou had to tell the truth that "the palace is easy to secret, and no one knows its source."