acc. to འཇམ་དབྱངས་མཁྱེན་བརྩེའི་དབང་ཕྱུག (1524–1568), this commentary was written for མ་གཅིག་བཙད་ཚ།, who was the first of Sa chen's two wives and the mother of his eldest son ཀུན་དགའ་འབར། Stearns 2001 (p. 21)