Prince Joy of Life's mother was Lady Ning.

The Crown Prince's mother was Noble Consort Shu.
Prince Joy of Life's mother was Lady Shu.
The Crown Prince and the First Prince in Joy of Life were not the same person. The Crown Prince was older than the Eldest Prince. The Crown Prince was conferred the title of Crown Prince the moment he was born and was not in the Prince Sequence. The First Prince's mother was not the Empress. Therefore, it could be concluded that the First Prince of Joy of Life was not the Crown Prince.
Yi Guipin was not the Crown Prince's mother. The Crown Prince's mother was the Empress. Yi Guipin was one of the concubines in the Qing Emperor's harem and had a good relationship with Fan Xian. Her son was the Third Prince, Li Chengping. However, the search results did not provide any information about Yi Guiping's ending and character description in the drama. Therefore, it was impossible to determine whether Yi Guipin would become the Crown Prince's mother in the play.
Yi Guipin was not the Crown Prince's mother. The Crown Prince's mother was the Empress. Yi Guipin was one of the concubines in the Qing Emperor's harem and had a good relationship with Fan Xian. Her son was the Third Prince, Li Chengping. Joy of Life was a historical drama about a teenager with a mysterious family background. As for Yi Guiping's ending and character description in the drama, the search results did not provide any relevant information.
Yi Guipin was not the Crown Prince's mother. The Crown Prince's mother was the Empress.
Yi Guipin was not the Crown Prince's mother. The Crown Prince's mother was the Empress. Yi Guipin was one of the concubines in the Qing Emperor's harem. She had a good relationship with Fan Xian, but she was not the Crown Prince's mother.
Yi Guipin was not the Crown Prince's mother. The Crown Prince's mother was the Empress. Yi Guipin was one of the concubines in the Qing Emperor's harem and had a good relationship with Fan Xian. Her son was the Third Prince, Li Chengping. However, the search results did not provide any information about Yi Guipin's ending or character description in the drama. Therefore, it was impossible to determine whether Yi Guipin was the Crown Prince's mother.
Yi Guipin was not the Crown Prince's mother. The Crown Prince's mother was the Empress.
Yi Guipin was not the Crown Prince's mother. The Crown Prince's mother was the Empress.