After Cao Cao died in early 220, his son Cao Pi usurped the throne from Emperor Xian later that year, ended the Eastern Han dynasty, and established the Cao Wei state with himself as the new emperor. After Cao Pi took the throne, he appointed Xin Pi as a Palace Attendant () and awarded him the peerage of a Secondary Marquis ().(文帝踐阼，遷侍中，賜爵關內侯。) Sanguozhi vol. 25.
