Gao Gan
Gao Gan was from an influential family in Yu County (), Chenliu Commandery (), which is around present-day Qi County, Kaifeng, Henan. He was also a maternal nephew of the warlord Yuan Shao, who controlled most of the territories in northern China from the 190s to his death in 202. Gao Gan held the appointment of Inspector () of Bing Province, which was one of the four provinces in northern China under Yuan Shao's control around 200 CE. He governed Bing Province for about seven years.