Yi Jachun

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Yi Ja-chun (Mongolian name: Ulus Bukha (Cyrillic: Улус Буха); Chinese: 吾魯思不花) (1315 – 1361) or Lee Jachun was a minor military officer of the Yuan Dynasty (he later transferred allegiance to the Goryeo Dynasty) and the father of Yi Seong-gye, the founder of the Joseon Dynasty. He was given the temple name Hwanjo (환조; 桓祖) by Taejong.

Biography[]

Yi Ja-chun was a mingghan (chief of one thousand) of the Yuan Dynasty in Ssangseong Prefectures (雙城;　Ssangseong in Korean, now Yŏnghŭng, Hamgyŏngnamdo, North Korea - territory which was then administered by the Mongol Empire as part of the terms of the vassaldom of Goryeo to that empire). After Ssangseong was annexed by Goryeo under King Gongmin, he migrated to Hamju, Hamgyŏngnamdo and got promoted to manho (the equivalent of the Mongolian tümen, lit. ten thousand or chief of ten thousand). He married a Chinese lady from Shandong, who became Queen Uihye, the mother of Yi Seong-gye.^[1][2] He died in Hamgyong in 1361.

Since he was glamorized by his descendants, descriptions of Yi Ja-chun's life tend to be contradictory to each other. For example, he is said to have risen to the rank of scholar-official. However, when he died, the king at the time expressed condolences for Jachun as if for scholar-officials, implying that Yi Ja-chun was not a scholar-official.^{[citation needed]}

Family[]

• Father: King Dojo of Joseon (? - 1342) (조선 도조)
  • Grandfather: King Ikjo of Joseon (조선 익조)
  • Grandmother: Queen Jeongsuk of the Yeongheung Choi clan (정숙왕후 최씨)
• Mother: Queen Gyeongsun of the Munju Park clan (경순왕후 박씨)
  • Grandfather: Park Gwang (박광)
• Consorts and their Respective Issue:
  • (이내은장, 李內隱藏; 부인 한산 이씨, 夫人 李氏; d. 1333)
    • 1st son (이원계 완풍대군, 李元桂, 完豊大君; 1330–1388)
    • 2nd son (이천계 영성대군, 李天桂; 1333–1392)
    • 1st daughter Lady Yi (부인 이씨, 夫人 李氏) – married Gang-U (강우, 康祐).
  • Queen Uihye of the Yeongheung Choi clan (의혜왕후 최씨)
    • 3rd son Yi Seong-gye, King Taejo of Joseon (이성계 조선 태조, 李成桂; 1335–1408)
    • 2nd daughter Princess Jeonghwa (정화공주, 貞和公主) – married Jo In-byeok, Internal Prince Yongwon (조인벽 용원부원군, 趙仁壁 龍原府院君).
  • Lady Gim Goeumga, Princess Jeongan (김고음가, 金古音加; 정안옹주, 定安翁主; d. 1404) – honoured as "Royal Noble Consort Jeong of the Gim clan" (정빈 김씨, 定嬪 金氏).
    • 4th son Yi Hwa, Grand Prince Uian (이화 의안대군, 李和 義安大君; 1348–1408)
  • Unknown woman
    • 5th son Yi-Yeong (이영, 李英; d. 1394)

In popular culture[]

• Portrayed by Jeon Byung-ok in the 2005–2006 MBC TV series Shin Don.
• Portrayed by Jung Dong-Gyu in the 2012 SBS TV series Faith.
• Portrayed by Lee Soon-jae in the 2015-2016 SBS TV series Six Flying Dragons.

References[]

See also[]

• List of Korea-related topics
• List of Goryeo people
• History of Korea

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