Guan Ning (158–241), courtesy name You'an, was a Chinese writer of the state of Cao Wei during the Three Kingdoms period of China. He was from Zhuxu County (朱虛縣), Beihai Commandery, which is near present-day Linqu County, Shandong.(管寧字幼安，北海朱虛人也。) Sanguozhi vol. 11. His father died when he was 16.(年十六喪父，中表愍其孤貧，咸共贈賵，悉辭不受，稱財以送終。) Sanguozhi vol. 11. He was friends with Hua Xin and Bing Yuan (邴原).(與平原華歆、同縣邴原相友，俱游學於異國，並敬善陳仲弓。) Sanguozhi vol. 11.
See also Lists of people of the Three Kingdoms
References
Chen, Shou (3rd century). Records of the Three Kingdoms (Sanguozhi). Pei, Songzhi (5th century). Annotated Records of the Three Kingdoms (Sanguozhi zhu).