Dong Yun
Huang Hao entered the Shu imperial palace sometime in the 220s as a eunuch attending to the Shu emperor Liu Shan, who favoured him because he was shrewd and full of flattering words. Whenever Huang Hao attempted to interfere in state affairs, Dong Yun, then the head of government, warned Liu Shan about the dangers of flattery and admonished Huang Hao for misleading the emperor. When Dong Yun was still alive, he kept Huang Hao in check and never allowed him to be promoted beyond the position of an Assistant of the Yellow Gate (黃門丞).