Mid-Joseon civil official whose conflict sparked the origin of the Easterner-Westerner factional division
| Life | 1542 ~ 1590 |
| Era | 조선 |
| Clan | 선산 김씨 |
Kim Hyo-won was a disciple of Yi Hwang and Jo Sik, with the courtesy name Inbaek (仁伯) and the art name Seongam (省庵). He served as Byeongjo Jwarang, Jeong-eon, Jipyeong, and Ijo Jeollang, and, advocating pure discourse (cheong-ui, 淸議), was esteemed as a leader of the new Confucian scholars.
Amid his conflict with Sim Ui-gyeom, his opposition to the recommendation of Sim Chung-gyeom as Ijo Jeollang became the origin of the split of the sarim into the Easterners (Dongin) and Westerners (Seoin), the beginning of factional division. While serving as a provincial official, he encouraged the establishment of Confucian academies and village schools, and left the literary collection Seongam Jip.