Yun Geun su

Yun Geunsu(윤근수, 尹根壽, 1537–1619) was Korean Joseon Dynastys politicians and Writer, Neo-Confucian scholars. a penname was Woljeong(월정, 月汀), Woeam(외암, 畏菴), courtesy name was Jago(자고, 子固).