Zheng Mao was born to the Ying clan from the state of
Zheng, which had fallen into decline after the death of
Duke Zhuang. She was sent with the primary wife as a concubine for
King Cheng of Chu (ruled. 671–626 BC). After she arrived at the Chu palace, the king looked down on the women's quarters and noticed her not looking up no matter what he offered her. He then made her his principal wife. Both she and his chief minister cautioned against the appointment of his son Shangchen as crown prince. After the king ignored the advice, Shangchen caused the downfall of the minister. After this, the King wanted to appoint a younger son as heir apparent instead, but now Zheng Mao advised against this, predicting civil war. Believing the king suspected her opposition against Shangchen was based on jealousy, she committed suicide. Not long after, Shangchen staged a
coup d'etat and forced the King Cheng to commit suicide. Shangchen then ascended the throne as
King Mu of Chu. ==Inclusion in the Lienü zhuan==