 Thereafter, it was said that Lady Lu and Mu Tipo were so powerful and so corrupt that they were openly taking bribes and selling the imperial offices, and all that they wished were carried out.In spring 573, Right Empress Mu became sole empress.As Empress Mu treated Lady Lu as mother and Mu Tipo as brother, Lady Lu was honored with the title "Grand Lady" (太姬, "taiji"), typically reserved for an empress's mother, and Empress Mu ignored her own mother Mu Qingxiao (穆輕霄).