There are indeed many similar people in history, but only one person wrote it by Guan Hanqing. She was framed by officials and gangsters. Zhang Donkey tried to occupy it, but when she didn't obey, she tried to poison Cai Po for blackmail, only to kill her father by mistake. Zhang Maolv falsely accused of murder, and the government tortured her mother-in-law and was sentenced to beheading in order to save Cai Po.