Career
Yun was the political leader of the Southern (Nam-in) faction of the Joseon Dynasty. His courtesy name was Baegho and Haheon, Yahbo. He was nominated to be a Jipyeong (持平, 지평) as a Yebinshijeong (禮賓寺正, 예빈시정) and had served in various other posts, before he left politics to absorb himself in scholarly pursuits.
In 1660 he became a leading figure in the controversy regarding the mourning rituals over King Hyojong.
In 1674 he became involved again in a second round of the controversy, this time over the death of Queen Inseon. In 1680 he was ordered to commit suicide by King Sukjong after a long public debate with Song Siyeol.
In 1680 Yun Hyu was expelled and exiled to Gapsan (甲山, 갑산) and that year sentenced to death and executed.
