Sanniangzi

Erketü Qatun, also referred to as the Third Lady or Sanniangzi, was an influential member of the Borjigin clan in the late 16th century and early 17th century. Her real name is unknown, only being remembered by a title bestowed upon her. She was the wife of four subsequent leaders of the Tümed, and her pro-Ming dynasty views kept the longest peace between the two competing powers.