What is the princess pretend to be crazy?

One example of a princess who pretended to be crazy is Princess Fei-yen of the Chinese Song Dynasty. Legend has it that Fei-yen was accused of treason and feared for her life, so she feigned madness to escape the wrath of her enemies.

Fei-yen's behavior was eccentric and unpredictable, and she would often break into wild fits of laughter or weeping seemingly for no reason. She also refused to bathe or groom herself, and would eat disgusting things like bugs and mud.

Despite her bizarre behavior, Fei-yen's family and servants saw through her act and continued to support her. Eventually, her enemies were defeated and she was able to resume her role as a respected and powerful princess. However, the story of her madness has endured as an example of the lengths to which people will go to avoid persecution and protect themselves from harm.