Empress Dowager Bian

Lady Bian, also known as Empress Dowager Bian or Grand Empress Dowager Bian, formally known as Empress Wuxuan, was an empress dowager and later grand empress dowager of the state of Cao Wei during the Three Kingdoms period of China. She was the wife of Cao Cao, a warlord who rose to power in the late Eastern Han dynasty and laid the foundation of Wei. She bore Cao Cao's successor, Cao Pi, who ended the Han dynasty and founded Wei in 220 after his father's death.