Queen Heonjeong of the Hwangju Hwangbo clan (Korean: 헌정왕후 황보씨; Hanja: 獻貞王后 皇甫氏; c. 966–993), or formally called as Grand Queen Mother Hyosuk (Korean: 효숙왕태후; Hanja: 孝肅王太后) during her son's reign, was a Goryeo royal family member as the third daughter of Wang Uk and youngest sister of King Seongjong.
As a widow she moved to her maternal home outside of the palace in Gaegyeong; the house was close to her half uncle Wang Uk's, located in Wangnyun Temple (왕륜사; 王輪寺), Songak Mountain.
[5] One day, Heonjeong dreamed of climbing Songak Mountain and urinating from the peak, overflowing the country and turning it into a sea of silver water.
Knowing what she'd done and feeling the fetus growing in her belly, the Queen was anxious and wanted to die because she was supposed to remain faithful to her late husband and not have an affair with another man, even becoming pregnant by her own uncle.
As soon as the flames started to spread, an official ran to put the fire out; King Seongjong, too, rushed to rescue them and, when he discovered of Heonjeong's pregnancy, he sent Uk into exile to Sasu-hyeon (modern-day Sacheon, South Korea).