Biography:Yun Doo-su

Yun Doo-su 윤두수
Chief State Councillor
In office 24 July 1599 – 6 November 1599
Preceded by	Yi Won-ik
Succeeded by	Yi Won-ik
Left State Councillor
In office 31 March 1598 – 9 April 1598
Preceded by	Kim Eung-nam
Succeeded by	Yi Won-ik
In office 13 June 1592 – 11 December 1594
Preceded by	Choe Heung-won
Succeeded by	Yu Hong
Right State Councillor
In office 10 June 1592 – 10 June 1592
Preceded by	Yi Yang-won
Succeeded by	Yu Hong
Personal details
Born	1533
Died	1601 (aged 67–68)

Letter of Yun Doo-su

Yun Doo-su (Korean: 윤두수, 尹斗壽; 1533–1601) was Joseon Dynasty Politician, Poet, Writer, and Neo-Confucian philosophic scholar. He served as the Yeonguijeong (Chief State Councillor) during the reign of King Seonjo. His pen name was Oheum (오음, 梧陰), courtesy name was Jaang (자앙, 子仰). He was follower of Yi Hwang school among Westerners (Hangul: 서인, Korean: Seoin).

Birth

Yun Doo-su was born in 1533 at Hansung (Seoul). His father was Yun Byeon (윤변, 尹忭; 1493–1549), who was government official. His younger brother Yun Geun-su was also major politician during reign of King Seonjo and Gwanghae. His family origin is from Haepyeong Yun clan and his family progenitor was Yun Gun-jeong (윤군정, 尹君正) who served as Pan-gongbusa (Chairman of supreme government office) of Goryeo dynasty during era of Gojong of Goryeo and Wonjong (원종, 元宗, 1219–1274).

Family

• Great-Grandfather
  • Yun Gye-jong (윤계정, 尹繼丁)
• Great-Grandmother
  • Lady Yun of the Haeju Yun clan (해주 윤씨, 海州 尹氏)
• Grandfather
  • Yun Hui-rim (윤희림, 尹希琳)
• Grandmother
  • Lady Park of the Juksan Park clan (죽산 박씨, 竹山 朴氏)
• Father
  • Yun Beon (윤변, 尹忭) (1493 - 8 July 1549)
• Mother
  • Stepmother - Lady Yi of the Jeonju Yi clan (전주 이씨)
  • Birth mother - Lady Hyeon of the Palgeo Hyeon clan (팔거 현씨, 八莒 玄氏) (? - 1544)
    • Grandfather - Hyeon Yun-myeong (현윤명)
  • Stepmother - Lady Yi of the Jeonju Yi clan (전주 이씨, 全州 李氏)
• Siblings
  • Older step-brother - Yun Dam-su (윤담수, 尹聃壽)
    • Sister-in-law - Lady Yu of the Jinju Yu clan (진주 유씨, 晋州 柳氏)
      • Nephew - Yun Hyeon (윤현, 尹晛) (1536 - 1597)
  • Older step-brother - Yun Chun-su (윤춘수, 尹春壽) (1521 - ?)
    • Sister-in-law - Lady Kim (김씨)
      • Nephew - Yun Ho (윤호, 尹皞) (1542 - 25 January 1589)
  • Older step-brother - Yun Gi-su (윤기수, 尹期壽)
  • Older step-sister - Lady Yun of the Haepyeong Yun clan (해평 윤씨)
    • Brother-in-law - Jeong Sun-hui (정순희, 鄭純禧) of the Dongrae Jeong clan (동래 정씨, 東萊 鄭氏)
  • Younger brother - Yun Geun-su (윤근수, 尹根壽) (1537 - 17 August 1616)
    • Sister-in-law - Lady Jo of the Pungyang Jo clan (풍양 조씨)
      • Nephew - Yun Hwan (윤환, 尹晥) (1556 - ?)
      • Nephew - Yun Jil (윤질, 尹晊)
      • Nephew - Yun Myeong (윤명, 尹㫥)
      • Nephew - Yun Yu (윤유, 尹曘)
      • Nephew - Yun Hwan (윤환, 尹㬇)
        • Niece-in-law - Lady Lee of the Ugye Lee clan (우계 이씨)
      • Nephew - Yun Min (윤민, 尹旼)
• Wives and their children
  • Lady Hwang of the Changwon Hwang clan (창원 황씨, 昌原 黃氏) (? - 1591)
    • Son - Yun Bang (윤방, 尹昉) (22 June 1563 - August 1640)
      • Daughter-in-law - Lady Han of the Cheongju Han clan (청주 한씨, 淸州 韓氏)
        • Grandson - Yun Yi-ji (윤이지, 尹履之)
        • Grandson - Yun Shin-ji (윤신지, 尹新之) (1582 - 1657)
          • Granddaughter-in-law - Princess Jeonghye (정혜옹주) (22 March 1584 - 18 March 1638)
            • Great-grandson - Yun Ji (윤지, 尹墀) (1600 - 1644)
            • Great-grandson - Yun Gu (윤구, 尹坵) (1606 - 1637)
    • Son - Yun Heun (윤흔, 尹昕) (1564 - 17 December 1638)
      • Daughter-in-law - Lady Yi of the Jeonju Yi clan (전주 이씨) (1565 - 1597)
        • Grandson - Yun Chwi-ji (윤취지, 尹就之)
        • Granddaughter - Lady Yun of the Haepyeong Yun clan (해평 윤씨)
      • Daughter-in-law - Lady Shin of the Yeongsan Shin clan (영산 신씨)
      • Daughter-in-law - Lady Seo of the Buyeo Seo clan (부여 서씨)
        • Grandson - Yun Tae-ji (윤태지, 尹泰之)
        • Granddaughter - Lady Yun of the Haepyeong Yun clan (해평 윤씨)
    • Son - Yun Hwi (윤휘, 尹暉) (1571 - 1644)
      • Daughter-in-law - Lady Yi of the Jeonju Yi clan (전주 이씨)
        • Grandson - Yun Myeong-ji (윤면지, 尹勉之)
          • Great-Grandson - Yun Gye (윤계, 尹堦) (1622 - 1692)
    • Son - Yun Hwon (윤훤, 尹暄)
  • Unnamed concubine
    • Son - Yun Woo(윤우, 尹旴)
    • Son - Yun Gan (윤간, 尹旰) (1573 - 12 February 1665)
      • Daughter-in-law - Lady Yi of the Yeoheung Yi clan (여흥 이씨, 驪州 李氏)
        • Grandson - Yun Yeon-ji (윤연지) (? - 1631)
        • Grandson - Yun Heum-ji (윤흠지, 尹欽之) (1599 - 10 March 1663)
        • Granddaughter - Lady Yun of the Haepyeong Yun clan (해평 윤씨)
        • Granddaughter - Lady Yun of the Haepyeong Yun clan (해평 윤씨)
      • Daughter-in-law - Lady Jeon of the Jeongseon Jeon clan (정선 전씨)
        • Grandson - Yun Gyeom-ji (윤겸지, 尹謙之) (1612 - 25 January 1637)
        • Grandson - Yun Jeon-ji (윤전지, 尹全之)
        • Grandson - Yun Im-ji (윤임지, 尹任之)
        • Grandson - Yun Gan-ji (윤간지, 尹柬之)
        • Grandson - Yun Seon-ji (윤선지, 尹善之)
      • Unnamed daughter-in-law
        • Granddaughter - Lady Yun of the Haepyeong Yun clan (해평 윤씨)
          • Grandson-in-law - Yi Chong-won (연성령 이충원, 延城令 李忠元)
  • Unnamed concubine
    • Son - Yun Oh (윤오, 尹旿)

Writings

• Oheum-yugo《오음유고》(梧陰遺稿)
• Gizaji《기자지》(箕子誌)
• Seong-in Rok《성인록 成仁錄》
• Pyeong-yang ji《평양지 平壤志》
• Yeon-an ji《연안지 延安志》

As a scholar

As most intelligent mind of Neo-Confucian philosophy, he interacted with masters of Neo-Confucianism school, such as Seong Hon, Song Ik-pil, Yi I, and Yi Hwang.

Most of his writings are written during the Japanese invasions of Korea.

Popular culture

• Portrayed by Jung Dong-hwan in the 2004-2005 KBS1 TV series Immortal Admiral Yi Sun-sin.