Grand Lady Heonmok of the Gyeongju Pyeong clan[2] (Korean: 헌목대부인 평씨; Hanja: 獻穆大夫人 平氏) was the daughter of Pyeong-Jun.
[1][3] She became the 7th wife of Taejo of Goryeo and mother of Prince Sumyeong.
[4] Among all of Taejo's wives and consorts, she held the highest title below the queen.
This indicated that her father made an important contribution - to established the new Goryeo Dynasty and possibly that he was a behind-the-scenes figure who promoted Silla's noble wealth.
Through her son, Heonmok became the great-grandmother of Queen Seonjeong.