The principal empress of Emperor Xuanren, known as Empress Wu. She died in Northern Rong five years ago and was posthumously honored as Empress Xiaogong Su by the Southern Dynasty. Her attending palace servant was used to claim that Yuan Zhen was an imposter. She is a past figure who serves in the authentication plot, and her name is used by the old eunuch to lend credibility to the false identification. She is not alive in the current story but influences events.
