Жосон әулетінің 22-ші патшасы Чонджо

22nd king of Joseon from 1776 to 1800

Jeongjo (hangul=정조; 28 October 1752 – 18 August 1800), personal name Yi San (hangul=이산), sometimes called Jeongjo the Great (hangul=정조대왕), was the 22nd monarch of the Joseon dynasty of Korea. He was the second son of Crown Prince Sado and Lady Hyegyeong, and succeeded his grandfather, King Yeongjo, in 1776. Today, Jeongjo is remembered for his various efforts to reform and improve the nation.

He was the son of Crown Prince Sado (who was put to death when Jeongjo was 11 by his father, King Yeongjo) and Lady Hyegyeong (who wrote an autobiography, The Memoirs of Lady Hyegyeong detailing her life as the ill fated Crown Princess of Korea). His elder brother Crown Prince Uiso died in infancy. His mother Lady Hyegyeong's collection of memoirs serves as a significant source of historical information on the political happenings during the reigns of King Yeongjo (her father in law), King Jeongjo (her son), and King Sunjo (her grandson). In 1762, his father, Crown Prince Sado, was executed (by imprisonment in a rice chest) by King Yeongjo (Crown Prince Sado's father and Prince Yi San's grandfather) after long conflicts and Sado's years of mental illness. Crown Prince Sado opposed the ruling Noron party. He started to hate the parties of Joseon. Eight years later Yi San asked to visit Sado's living quarter but his Grandfather King Yeongjo refused. So he refused to attend Crown Prince Sado's funeral. On 21 February 1764, Yi San became the adoptive son of Crown Prince Hyojang and Princess Consort Hyosun by the order of King Yeongjo. Crown Prince Hyojang was the elder half brother of his father, Crown Prince Sado. Crown Prince Hyojang though, had died during his childhood. King Yeongjo made Yi San a part of Hyojang's family because he was concerned that Yi San, who was Sado's son and successor, would be opposed. The Noron faction protested Yi San's legitimacy as the royal successor under the claim that Yi San was the 'Son of a prisoner' or 'Son of a madman' and thus ineligible to succeed the throne. This was a major source of vexation for King Yeongjo for an extended period. After 1762 to 1777, some members of Noron attempted to depose Jeongjo for his relation to Crown Prince Sado and open the path of succession for his half brothers Prince Eunjeon, Prince Euneon and, Prince Eunshin. His grand uncle Hong In han and Jeong Hu gyeom, adopted son of Princess Hwawan, were amongst them. When he was the Crown Prince, King Jeongjo met Hong Guk yeong (hangul=홍국영), a controversial politician who first strongly supported Jeongjo's accession and toiled to improve the king's power, but ended up being expelled because of his desire for power. Another helper was Kim Jong su (hangul=김종수), despite being a member of Noron. In 1775, one year before King Yeongjo's death, King Jeongjo was appointed regent. However, King Yeongjo did not give him any military power.

Before Yeongjo died, Jeongjo had his coronation in Gyeonghuigung on 10 March 1776. After his coronation, Jeongjo chose his spouse. The first thing that Jeongjo said to his officials was that he was the son of Jangjo (temple name of Crown Prince Sado) who was executed by the former king. Jeongjo tried to empathize with his people. During his second year of reign, a great drought came. During the drought, Jeongjo was nervous just like the people and did a rainmaking ritual for his people. He also was deeply concerned about the continuing outbreaks of measles epidemics, and among other things supplied free public medicines in an attempt curb the death rates. Concerned about political factions, Jeongjo continued his grandfather's policy of 탕평책 (political harmony policy) in an attempt to balance political factions. By this, he tried to get rid of the parties which caused his father's death. He also moved the court to the city of Suwon to be closer to his father's grave. He built Hwaseong Fortress to guard the tomb. It is now a UNESCO World Heritage Site. Jeongjo was always threatened by some of his officials who were against his reign. He was able to overcome these challenges with the help of Hong Guk yeong and others. Jeongjo then established the new law of 신해통공 (free trade law), which allowed anyone to sell their goods at the market. This abolished the previous law of 금난전권, which reserved this right exclusively to members of merchant groups in the capital.

In his final years, Jeongjo arranged for the marriage of his second son and successor Sunjo of Joseon to Lady Kim of the Andong clan, daughter of Kim Jo sun, but did not live to see his son's marriage. In 1800, Jeongjo died suddenly under uncertain circumstances at the age of 47, without seeing much of his life's work come to fruition under his son, Sunjo. There are many books regarding the mystery behind his death, and speculation as to the cause of his death continues even today. He is buried with his wife, Queen Hyoui, at the royal tomb of Geonneung (hangul=건릉) in the city of Hwaseong. On 7 December 1899, Jeongjo posthumously became Jeongjo Sanghwangjae.

Portrayed by Kim Yong gun in the 1989 MBC TV series 500 Years of Joseon Dynasty: Pa Mun. Portrayed by Jung Jae gon in the 2001 MBC TV series Hong Guk yeong. Portrayed by Lee Seo jin and Park Ji bin in the 2007 MBC TV series Lee San, Wind of the Palace. Portrayed by Bae Soo bin in the 2008 SBS TV series Painter of the Wind. Portrayed by Han Myeong goo in the 2008 film Portrait of a Beauty. Portrayed by Jo Sung ha in the 2010 KBS2 TV series Sungkyunkwan Scandal. Portrayed by Hong Jong hyun in the 2011 SBS TV series Warrior Baek Dong soo. Portrayed by Hyun Bin and Goo Seung hyun in the 2014 film The Fatal Encounter. Portrayed by Lee Je hoon, Kim Woo suk, and Kim Dan yool in the 2014 SBS TV series Secret Door. Portrayed by Go Woo rim in the 2015 KBS2 Drama Special Crimson Moon. Portrayed by So Ji sub and Lee Hyo je in the 2015 film The Throne. Portrayed by Lee Jun ho and Lee Joo won in the 2021 MBC TV series The Red Sleeve.