1Lord Bao (Judge Bao), popular name for Bao Zheng (999-1062), Northern Song official legendary for his incorruptibility and fairness, the archetypal honest judge in Chinese culture
包公's dark face and crescent-moon forehead in Beijing opera signal absolute incorruptibility. Calling someone a 包公 is the highest compliment a Chinese official can receive, used from Song operas to modern anti-corruption TV dramas like 《包青天》.