Seong Honorary

Career

He was a close friend of the scholar Yi I(Yulgok) and an older contemporary of Yi Hwang (Toegye), leader of the country"s "western faction" (seoin 서인, 西人) of the period. Seong Honorary is often referred to by his stylized name of Ugye ("bull valley") and Mugam ("black stone").

Achievements

• He gained eminence not only as a scholar but as a revered politician and reformer, attaining the position of Fourth State Councillor/Vice Prime Minister (Jwachanseong 左贊成) in the Joseon State Council (uijeongbu).