Jeong In-ji (정인지, December 28, 1396 – November 26, 1478) was a Korean Neo-Confucian scholar, historian who served as Vice Minister of Education or Deputy Chief Scholar (Head of Office for Special Advisors) during the reign of King Sejong the Great, Minister of Rites during the reign of King Munjong and Danjong , Left or Second State Councillor or Vice Prime Minister from 1453 to 1455 during the reign of King Danjong, and Chief State Councillor or Prime Minister from 1455 to 1458 during the reign of King Sejo. He was nicknamed Hagyeokjae (학역재).

Letters of Jeong In-ji

He is perhaps best known for having written the postscript of the Hunmin Jeongeum Haerye, the commentary on and explanation of the native alphabet Hangeul invented by King Sejong in 1443. He also contributed to the Goryeo-sa, the official history of Goryeo dynasty, and the Yongbi Eocheon-ga (용비어천가).

His second son, Jeong Hyeon-jo, was married to Princess Uisuk, the second daughter of King Sejo of Joseon.


  • Hunminjeongeum (훈민정음, 訓民正音)
  • Hunminjeongeum yehae (훈민정음예해, 訓民正音例解)
  • Hagyeokjaejip (학역재집, 學易齋集)
  • Yeokdae yeokbeop (역대역법, 歷代曆法)
  • Goryeosa (고려사, 高麗史)
  • Goryeosa jeolyo (고려사절요, 高麗史節要)
  • Yeokdae byeongyo (역대병요, 歷代兵要)
  • Saryun ojip (사륜오집)
  • Jachitonggam hunui (자치통감훈의, 資治通鑑訓義)
  • Sejong sillok (세종실록, 世宗實錄)

In popular culture

External links

See also