Princess Yeonhui
Princess Yeonhui (Hangul: 연희궁주, Hanja: 延禧宮主) was a Goryeo Royal Princess as the first and oldest daughter of King Myeongjong and Queen Uijeong, also the first younger sister of King Gangjong. In 1173, she formally called as Royal Princess of the Yeonhui Palace (연희궁공주, 延禧宮公主) and in 1179, she married Wang-Jin, Marquess Yeongin (왕진 영인후). He later died on 27 October 1220 (7th year reign of Gojong of Goryeo). Family. Her relationship with Sinjong was once "Niece-Uncle", but later became "In-law" since their child got married (King Huijong and Queen Seongpyeong).