Yi Ui-bang

Yi Ui-bang (, ? - 1174) was a Korean Goryeo dynasty soldier and politician. He was the father-in-law of King Gangjong and grandfather of King Gojong.
Life.
In 1170 Yi joined the Goryeo warrior rebellion. In 1174, he was murdered by Jeong Kyun.
His younger brother Yi In was the ancestor of Yi Seonggye, the founder of the Joseon dynasty.