孝肃 Traditional form: 孝肅 Pinyin (reading): Xiàosù Definitions: Xiaosu, posthumous name of Bao Zheng 包拯 ( Bāo Zhěng) (999-1062), Northern Song official renowned for his honesty Characters: 孝 - filial piety, obedience; mourning 肃 - to pay respects; solemn, reverent Traditional characters: 孝 - filial piety, obedience; mourning 肅 - to pay respects; solemn, reverent