반소
Ban Zhao was born in Anling, near modern Xianyang, Shaanxi province. At age fourteen, she married a local resident named Cao Shishu and was called in the court by the name as Venerable Madame Cao (). Her husband died when she was still young. She never remarried, instead of devoting her life to scholarship. She was the daughter of the famous historian Ban Biao and younger sister of the general Ban Chao and of historian Ban Gu. She was also the grandniece of the notable scholar and poet Consort Ban.