The emperor's mother is called the Empress Dowager. What should the queen mother call her?

The Queen is the Queen Mother of the East Palace and the Queen Mother of the West Palace, just like the emperor shunzhi. If I were that man, I wouldn't be so stupid. Sooner or later, the Empress Dowager is a power threat. It's better to find a childless first emperor's wife and concubine like' Chang' and' noble' to seal the queen mother. At least she can't disobey, and then let the harem people find fault and put her mother to death or criminal law in public. The former queen was tantamount to mismanagement and was demoted as a toffee.