Yi Ja-gyeom
Yi Ja-gyeom (died 19 January 1127) of the Incheon Yi clan, was a Korean politician, soldier, regent, and poet in the middle Goryeo dynasty. In 1122, he became the Duke Hanyang (한양공, 漢陽公) and the Duke of Joseon State (조선국공, 朝鮮國公) two years later. As the full maternal grandfather of Injong of Goryeo, Yi became the young king's regent after his father's death and even purged those who were trying to usurp the throne. He gained more power upon marrying his two daughters to Injong, but eventually eliminated by Injong own after tried to  poison him. In 1126, he started the rebellion to purged his opponents and seized his own power, but was removed by Cheok Jun-gyeong (척준경), Yi's alliance before at Injong's side. During his exile in Jeollanam-do, Yi ate a dried fish and named it ""Yeonggwang Gulbi"" (영광 굴비) after "Yeonggwang" was his exile location and "Gulbi" was came from one of his word, ""I Won't Give Up"" (뜻을 굽히지 않겠다). Although exiled peoples are mostly forgotten by the monarch, but since Injong still respected to Yi as his maternal grandfather and once became his guardian when  he was too young, he then gave Yi and his wife, Lady Choe some tributes from the palace and deeply commemorated them, even gave all of their sons each "600 grains" (600석 곡식).