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Chŏng Inji 정인지
Portrait of Chŏng Inji, ca. 1472
Chief State Councillor
In office July 25, 1455 – January 11, 1459
Preceded by	Yi Yu, Grand Prince Suyang
Succeeded by	Jeong Chang-son
Left State Councillor
In office November 11, 1453 – April 20, 1455
Preceded by	Kim Jong-seo
Succeeded by	Han Hwak
Personal details
Born	(1396-12-28)December 28, 1396 Hanseong-bu, Joseon
Died	November 26, 1478(1478-11-26) (aged 81) Hanseong-bu, Joseon
Korean name
Hangul	정인지
Hanja	鄭麟趾
Revised Romanization	Jeong Inji
McCune–Reischauer	Chŏng Inji
Art name
Hangul	학역재
Hanja	學易齋
Revised Romanization	Hagyeokjae
McCune–Reischauer	Hagyŏkchae
Courtesy name
Hangul	백저
Hanja	伯雎
Revised Romanization	Baekjeo
McCune–Reischauer	Paekchŏ
Posthumous name
Hangul	문성
Hanja	文成
Revised Romanization	Munseong
McCune–Reischauer	Munsŏng
Joseon Royal Title
Hangul	하동부원군
Hanja	河東府院君
Revised Romanization	Hadong Buwongun
McCune–Reischauer	Hadong Puwŏn'gun

Chŏng Inji (Korean: 정인지; Hanja: 鄭麟趾; 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 from 1453 to 1455 during the reign of King Danjong, and Chief State Councillor from 1455 to 1458 during the reign of King Sejo. He was nicknamed Hakyeokjae (학역재). He was from the Hadong Jeong clan (하동 정씨; 河東 鄭氏)

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 the 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. His descendants would eventually have royal connections through their marriages.

• 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)

• Father: Jeong Heung-in (정흥인; 鄭興仁; 1363–1436)
• Mother: Lady Jin of the Heungdeok Jin clan (정경부인 흥덕 진씨; 貞敬夫人 興德 陳氏; 1367–1437); married in 1387
• Sibling(s)
  • Older sister - Lady Jeong of the Hadong Jeong clan (하동 정씨; 河東 鄭氏; 1385–1424)
  • Younger brother - Jeong In-jong (정인종; 1399–?)
  • Younger brother - Jeong In-gak (정인각; 1402–?)
  • Younger sister - Lady Jeong of the Hadong Jeong clan (1408–?)
• Wives and their children
  • Lady Jo of the Hanyang Jo clan (한양 조씨; 1400–1435); daughter of Jo Hu (조후, 趙侯; 1372–?)
    • Son - Jeong Gwang-jo (정광조; 鄭光祖; 1416–1457)
    • Daughter - Lady Jeong of the Hadong Jeong clan
  • Lady Yi of the Gyeongju Yi clan (정경부인 경주 이씨; 1417–?); second daughter of Yi Hyu (판한성부사 이휴, 李携; 1372–?)
    • Son - Jeong Hyeon-ju (정현조; 鄭顯祖; 1440 – 13 July 1504)
    • Son - Jeong Sung-jo (정숭조; 鄭崇祖; 1442 – 13 February 1503)
    • Daughter - Lady Jeong of the Hadong Jeong clan (1449–?)
    • Daughter - Lady Jeong of the Hadong Jeong clan (1450–?)
    • Son - Jeong Gyeong-jo (정경조; 鄭敬祖; 1455 – July 1498)
    • Son - Jeong Sang-jo (정상조; 鄭尙祖; 1459–1491)

• Portrayed by Jeong Seung-hyeon in the 1984–1985 MBC TV series 500 Years of Joseon: The Ume Tree in the Midst of the Snow
• Portrayed by Lee Shin-jae in the 1990 KBS TV series Dance Toward the Broken Heavens
• Portrayed by Han In-su in the 1994 KBS TV series Han Myeong-hoe
• Portrayed by Park Woong in the 1998–2000 KBS TV series The King and Queen
• Portrayed by Lee Jin-woo in the 2008 KBS TV series The Great King, Sejong
• Portrayed by Park Hyuk-kwon in the 2011 SBS TV series Deep Rooted Tree.
• Portrayed by Woo Sang-jeon in the 2011–2012 JTBC TV series Insu, The Queen Mother
• Portrayed by Jeong Eui-gap in the 2016 KBS1 TV series Jang Yeong-sil.

• Portrayed by O Yeong-su in the play Tae in 1997 and 2007
• Portrayed by Lee Jin-bok in the 2012 film The Majesty's Spring

• Sejo of Joseon
• Sin Suk-ju
• Han Myeong-hoe
• Han Hwak
• King Seonjo of Joseon

• Jeons Inji's family home
• 문성공 정인지의 생애
• 문성공 정인지의 업적과 사상

Pratt: 175 & 337

Lee Ki-baik: 193,198 & 201