Yang Su
Meanwhile, Yang Guang was continuing to provoke Empress Dugu, falsely stating that he feared that Yang Yong would eventually put him to death. Yang Guang further entered into an alliance with Yang Su, with whom Yang Yong had a poor relationship, and Empress Dugu also told Yang Su to encourage Emperor Wen to depose Yang Yong. Subsequently, Yang Guang engaged Yang Yong's associate, Ji Wei (姬威), to falsely accuse Yang Yong of plotting treason.