Lady Cui.

About Lady Cui

Lady Cui (崔氏) was a Chinese noblewoman of the Cui clan of Qinghe from the late Eastern Han dynasty. She was the wife of Cao Zhi, Cao Cao's son and a prince of the Cao Wei state during the Three Kingdoms period. She is best known for the incident that led to her death: after a dispute over succession between Cao Zhi and Cao Pi, Lady Cui wore an embroidered robe that was specific to the wife of the heir at a ceremony and was seen by Cao Cao who later forced her to commit suicide for violating the dress code.