According to the newly revised edition, Jin Yong was mystifying, and later recorded Duan Zhengxing (the father of Nandi): "It is unknown whether it was born by Mu,, or other concubines." This actually indirectly denied the birth of Mu Wanqing, Zhong Ling, Xiao Lei and the Queen.
It depends on the story of Jin Yong. Duan Yu killed and married eight concubines, including A Bi. In order to keep her beauty, Wang Yuyan left Duan Yu to practice disfigurement with her nominal grandfather, but she was pregnant with Duan Yu's flesh and blood, but this version was not published for various reasons.