Jeong Jung-bu (1106–1179) was a medieval Korean soldier and military dictator during Goryeo Dynasty (918–1392). He was a career soldier, qualified on military part of civil service examination. He was most noted for leading a coup d'état in 1170 (Revolt of military officers), dethroning the king and beginning of 100-year military reign in Korea.
Read more about Jeong Jung-bu: Early Career, Coup, Post Coup