Sunjo (29 July 1790 – 13 December 1834, reigned 1800–1834) was the 23rd king of the Korean Joseon Dynasty. He was born with the title of His Royal Highness Prince Yi Gong. Sunjo was the 2nd son of King Jeongjo which King Jeongjo had with Lady Subin, one of King Jeongjo concubines.
Sunjo ascended to the throne in 1800 upon the death of his father, King Jeongjo, at age 11.
In 1802, King Sunjo married Lady Kim of Andong, known posthumously as Queen Sunwon, daughter of Kim Jo-sun who was a leader of Andong Kim clan.
Since he ascended the throne at a young age, Queen Dowager Jeongsun, the second queen of King Yeongjo, ruled as queen regent, which allowed her to wield power over state affairs. Despite King Sunjo’s efforts to reform politics, the fundamental principles of government deteriorated. The state examination became disordered and corruption in the government personnel administration prevailed. This resulted in disorder in society and various kinds of riots broke out among the people, including the revolt by Hong Gyeongnae. The Ogajaktongbeop (五家作統法, a census registration system to group five houses as one unit) was also carried out in this period, and oppression against Roman Catholicism began in earnest.
The Kingdom of Joseon (Chosŏn'gŭl: 대조선국; hancha: 大朝鮮國, literally "Great Joseon State"; also Chosŏn, Choson, Chosun) was a Korean kingdom founded by Yi Seonggye that lasted for approximately five centuries, from July 1392 to October 1897. It was officially renamed the Korean Empire in October 1897. It was founded following the aftermath of the overthrow of Goryeo in what is today the city of Kaesong. Early on, Korea was retitled and the capital was relocated to modern-day Seoul. The kingdom's northernmost borders were expanded to the natural boundaries at the Yalu and Tumen Rivers through the subjugation of the Jurchens. Joseon was the last dynasty of Korea and its longest-ruling Confucian dynasty.
During its reign, Joseon encouraged the entrenchment of Chinese Confucian ideals and doctrines in Korean society. Neo-Confucianism was installed as the new dynasty's state ideology. Buddhism was accordingly discouraged and occasionally faced persecutions by the dynasty. Joseon consolidated its effective rule over the territory of current Korea and saw the height of classical Korean culture, trade, science, literature, and technology. However, the dynasty was severely weakened during the late 16th and early 17th centuries, when the Japanese invasions of Korea (1592–98) and the first and second Manchu invasions of 1636 nearly overran the Korean Peninsula, leading to an increasingly harsh isolationist policy for which the country became known as the "hermit kingdom". After the end of invasions from Manchuria, Joseon experienced a nearly 200-year period of peace.
Joseon was a Korean kingdom between 1392 and 1897.
Joseon, Chosŏn, Choseon or Chosun may also refer to: