Ryu Seong-ryong

Yu Sŏngnyong (Korean: 유성룡; Hanja: 柳成龍; 7 November 1542 – May 1607), also known as Ryu Sŏngnyong (Korean: 류성룡), was a scholar-official of the Joseon period of Korea. He held many responsibilities, including the Chief State Councillor position in 1592. He was a member of the "Eastern faction" and a follower of Yi Hwang.