Ban Zhao
Ban Gu's great-aunt Consort Ban was a scholar and poet, and his father Ban Biao was a prominent historian. He took over from his father responsibility for writing a history of the former Han Dynasty, a book known in modern times as the "Hanshu" or "Book of Han". However, his work was interrupted by political problems, as his association with the family of Empress Dowager Dou led to his imprisonment and death (either by execution or torture). A few volumes of his book in 13–20th (eight chronological charts) and 26th (astronomical biography), however, was completed by his younger sister, Ban Zhao, and became a model for many other works about later dynasties.