Queen Sapyeong of the Jeonju Yi clan (Korean: 사평왕후 이씨; Hanja: 思平王后 李氏; 1158 – ?)
was the first and primary wife of King Gangjong of Goryeo when he was still a crown prince who just reigned for 9 months.
In 1174, she married Crown Prince Wang Suk as his primary and first wife since her father had a big influence in the court.
However, after 5 months reign, her father was assassinated in the coup led by Chŏng Kyun (정균),[2] son of Chŏng Chung-bu (정중부),[3] which she later expelled from her position and out the palace according to the opinion that, After her husband's ascension to the throne, she then received her title back and posthumously honoured as a Queen Consort.
The couple had a daughter who later married Wang Ch'un, Duke Hawon (왕춘 하원공).