Lord Bao or Judge Bao, fictional nickname of Bao Zheng 包拯[Bao1 Zheng3] (999-1062), Northern Song official renowned for his honesty
Definitions (粵典–words.hk)
名詞、專名
對包拯（宋朝一位清廉公正嘅官員）嘅尊稱；喺民間宗教入面亦被敬奉為神明 Bao Gong, i.e. Bao Zheng, an official of Song Dynasty, known in folklore for being a righteous and astute judge
近義詞
包青天
Definitions (Wiktionary)
name
Honorific name or nickname of Bao Zheng.
noun, figuratively
honest, upright official who is strictly impartial and incorruptible