A powerful noble whose mansion in Yun Capital is responsible for the wrongful execution of Mei Ziyu's father. The Marquis's mansion seized the Mei family's assets, including their Jimin Pharmacy. Shops bearing the character 'peace' (安) on Xiangfu Street, accounting for half the street, belong to the Marquis of Anguo. The Marquis himself does not appear directly in the text but is the central antagonist behind the family's downfall.