Chŏng To-jŏn

Jeong Do-jeon (; October 6, 1342 – October 6, 1398), also known by his art name Sambong (), was a prominent Korean scholar-official during the late Goryeo to the early Joseon periods. He served as the first Chief State Councillor of Joseon, from 1392 until 1398 when he was killed by the Joseon king Yi Bang-won. Jeong Dojeon was an adviser to the Joseon founder Yi Seong-gye and also the principal architect of the Joseon dynasty's policies, laying down the kingdom's ideological, institutional, and legal frameworks which would govern it for five centuries. Provided by Wikipedia