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Yi Kang, King Ui or Prince Imperial Ui
Yi on his uniform as Lieutenant General in Imperial Korean Army
Born	(1877-03-30)30 March 1877 Hanseong-bu, Joseon
Died	15 August 1955(1955-08-15) (aged 78) Andong Palace, Anguk-dong, Jongno-gu, Seoul, South Korea
Burial	Hongyu-reung, Namyang-ju
Spouse	Kim Deok-su, Princess Imperial Ui ​ ​(m. 1892; died 1964)​ Concubines: Lady Jeong of Sugwandang Kim Heung-in, Lady Suindang Jeong Un-seok, Lady Suhyundang Cho Byung-suk Yi Hui-chun, Lady Sudeokdang Kim Jeong-wan, Lady Suwandang Park Yeong-hui, Lady Sugildang Lady Song Kim Chang-hui, Lady Sokyungdang Ham Kae-bong Kim Hye-su Hong Jeong-sun
Issue Detail	Prince Yi Geon (Later Kenichi Momoyama) Prince Yi U Yi Bang Yi Hae-wan Yi Chang Yi Ju Yi Hae-won Yi Gon (Successor of Yi Kang) Yi Hae-chun Yi Hae-suk Yi Gwang Yi Hyun Yi Haegyeong Yi Gap Yi Seok Yi Hoe-ja Yi Hwan Yi Hae-ran Yi Jung Yi Hae-ryeon Yi Chang-hui
House	House of Yi
Father	Emperor Gojong of Korea
Mother	Empress Myeongseong(legal) Lady Jang of the Deoksu Jang clan(birth)
Religion	Confucianism, Buddhism, Catholic

Yi Kang, Prince Imperial Ui (Korean: 의친왕 이강; 30 March 1877 – 15 August 1955), also known as Prince Uihwa(1891-1900) or King Ui(1900-1955). was the second son of Emperor Gojong of Korea and his concubine, Lady Jang, who was a court lady-in-waiting.

In 1891, his father King Gojong issued a decree naming Yi "Prince Uihwa" with the style of Royal Highness. Yi married Lady Kim Deok-su, the daughter of court official Kim Sajun.

Upon declaration of Korean Empire in 1897, Yi was enthroned as King Ui or Prince Imperial Ui by his father Emperor Gojong of Korea in 1900 along with hisn younger brother, Yi Un.

Biography

Education and early life

Despite being born as a son of Gojong of Korea, there are not many official records about his early life, which may be a result of having been borne by Lady Jang, a court lady-in-waiting of King Gojong but not the king's official consort or concubine during her lifetime. Lady Jang came from the Deoksu Jang clan, and Queen Inseon (Hyojong of Joseon's queen consort) was her distant relative. According to the tradition, the half-brothers of the crown prince, in this case, Yi Cheok (future Sunjong of Korea), needed to move out from the palace until the latter reached the age 10; as the result, there were some years that Yi Kang lives with Pak Yung-hio, the son-in-law of King Cheoljong. During the Gapsin Coup in 1884, Yi Kang and his mother were taken by Pak Yung-hio to the palace; contemporary rumors claimed that the coup d'état tried to replace the king with Yi Kang; but after the coup ended, Yi left the palace again.

Later, Queen Min, Gojong's wife, asked her husband to grant Yi Kang a title, so Yi Kang became Prince Uihwa (의화군) in 1891. After three rounds of choosing in 1893, the daughter of an official Kim Sa-jun, Lady Kim Deok-su, was chosen to be the spouse of Yi Kang, which was arranged by Queen Min. Lady Kim, also known as "Lady Kim of Deokindang", was a distant relative to Queen Inmok, the queen consort of Seonjo of Joseon in the early 17th century; Yi Kang did not have children by her. Even after getting married, Yi Kang got involved in debt and lawsuit problems.

Prince Yi Kang was appointed special ambassador to the Empire of Japan for the celebration ceremonies for Japan's victory in the First Sino-Japanese War of 1894–1895. Yun Chi-ho, who met Yi before going Europe, assessed him as a smart 18 years old who had a good personality like his father but whom worried to study abroad. In August 1895, Yi was appointed as Special ambassador and visited some European countries including, the United Kingdom, Germany, France, Russia, Italy and Austria-Hungary. In 1899, he in Japan. According to Japanese record, 3,000 Won was sent for Yi. While he was not in Korea, Yi Kang was promoted to the rank of Prince Imperial Ui, and styled His Imperial Highness in 1900. At the same year, he went to the United States and began studies at Roanoke College in Salem, Virginia from March 1901, where he majored in mathematics. While he was in the United States, the Korean Government gave him 30,000 Won in 1902. While in America, Yi was beaten by some Americans in 1903. In 1904, some Korean foreign students tried to dethrone Gojong and make Yi the emperor. After graduation, he spent a brief period at the Ohio Wesleyan University in Delaware, Ohio, and then traveled to San Francisco and Hawaii, returning to Korea on 15 March 1906. Same year, he got Order of the Golden Ruler. On 8 April 1906, Yi was appointed as Lieutenant General (부장). He was appointed as Chanmogwan and was ordered to participate in the Military parade in Empire of Japan. He received 1st class of Order of the Paulownia Flowers from the Japanese Government while he was in Japan.

Prince Yi Kang served as the president of the Korean Red Cross from 1906 to 1907. On 15 January 1907, Yi persuaded civilians and military personnels to raise Righteous army. When Emperor Gojong abdicated and Emperor Sunjong succeeded as the Emperor, Yi was not appointed as the crown prince, but his younger brother, Yi Un, was appointed as the crown prince because, Yi did not receive public support and Gojong did not like him. Also, Imperial Consort Sunheon bribed Itō Hirobumi, who was the Japanese Resident General of Korea, to appoint her son as the crown prince. When Itō Hirobumi was assassinated by An Jung-geun, Yi was ordered to participate the funeral as deputy of Korean Imperial House. But the order was canceled and Minister of Imperial Household Min Byeong-seok [ko] was sent instead.

Under Japanese rule

Following the abdication of Emperor Gojong in 1907, and the Japan-Korea Treaty of 1910 by which Korea was annexed to the Empire of Japan, Prince Yi Kang grew increasingly dissatisfied with his status, even though the Japanese provided him with a huge annual allowance. At the same time, the title "Prince Imperial Ui" was abolished and also received a reduction in rank to Duke by Japanese until 1930.

During the March 1st Movement, Yi participated as one of the representatives of Korea. Since Yi used to study abroad and know much about the world, the Provisional Government of the Republic of Korea wanted Yi to join the government. After the escape of Gim Ga-jin, an Imperial Korean official before, the Provisional Government's objective was Yi's refuge to Shanghai. On 9 November 1919, he collaborated with Choe Ik-hwan, a member of Daedongdan [ko], who attempted to support him as the new leader of Korea. Prince Yi Kang then tried to escape to the Provisional Government of Korea based in Shanghai, only to be discovered in Dandong from Manchuria and returned to his home country. Lee Jong-Wook got orders from Ahn Changho to accompany Yi and help escape of Yi. With the help of Cheon Un-boek, who was an employee of the Japanese General Government Building, Yi successfully met Lee Jong-Wook, who came to rescue him. Yi faked his face by attaching mustaches on his face. However, Yi was caught near the Dandong Station, which is located in Zhenxing District. On 13 November 1919, Yi was sent back to Keijō by Japanese police force. After this, the Japanese government claimed that Yi Kang was "abducted" and "wanted to escape to live profligately again". Later, Yi Kang asked to deprive his title multiple times but he wasn't approved. Yi's home became part of Deoksugung.

On 20 November 1919, Yi had an interview with Tongnip Sinmun. He said that he would rather be a peasant of the independent Korea than a noble of Empire of Japan. During the tenure of Saitō Makoto, Saitō met Yi many times and tried to change his stance about the independence. As of November 10, 1925, a law for defining the status of the former Korean imperial family was made; on June 12, 1930, Yi Kang officially retired and his eldest son Yi Geon succeeded him as duke, but Yi Kang's styles and allowances still remained until the end of World War II.

In 1930, due to Yi's continuous independent movement activities against Japan, Yi was stripped of his Duke rank by Japan and became a commoner. His 'Duke' title was inherited to his eldest son Yi Geon. Throughout the Japanese rule, there were only few members of Yi Kang family recognized by Japan: Yi Kang himself, his wife Kim Deok-su (Duchess Consort of Yi Kang), his eldest son Duke Yi Geon with his family, and his second son Duke Yi U (adopted as the heir to Duke Yi Jun-yong in 1917) with his family.

After Independence

After the independence of Korea, he continued to live in Seoul, but in increasing poverty. On 9 August 1955 he was baptized a Roman Catholic, given the Christian name "Pius"; Lady Kim was also baptized and given the name of "Maria". Yi said that the reason why he was baptized a Roman Catholic was to apologize for the Anti-Catholic of Joseon led by Heungseon Daewongun. Yi Kang died a week later on August 15, 1955, at the age of 78, in his mansion "Seongrakwon" Manor (now Seongnagwon Garden, in Seongbuk District, Seoul); he was buried at the Hongneung and Yureung imperial tombs in Namyangju near Seoul, where his father and brothers are also buried. His official heritor was chosen as his third son, Yi Bang on 30 June 1970.

Family

Prince Imperial Ui, Yi Kang married Kim Deok-su (22 December 1880 – 14 January 1964) in 1892; however, the couple had no children. Therefore, all children Yi Gang had, 12 sons and 9 daughters, were born by 13 of his various concubines. Since his first son Yi Geon was naturalized to Japan, and his second to fifth sons were adopted by royal relatives, his sixth son, Yi Gon became the successor of Yi Kang. Currently Yi Gon's first son, Yi Jun(1961~) is the current heir of Prince Imperial Ui and is the chairperson of Prince Imperial Ui Memorial Foundation.

Wife

Concubines

Sons

Daughters

Ancestry

Honours

 Korean Empire

• Order of the Golden Ruler on 9 April 1906

 Empire of Japan

• Order of the Paulownia Flowers 1st class on 27 April 1906
• Korean Colonization Decoration on 1 August 1912
• Grand Cordon of the Order of the Rising Sun

Notes

1. According to the Jang family genealogy book published in 1974, Lady Jang was recorded as daughter of Jang Seok-Jeong (장석정, 1736–1796) but the time didn't match; it's also conjectured that her father could be Jang Jwa-geun (장좌근, b. 1819), a grandson of Jang Seok-Jeong, and Lady Yi of the Jeonju Yi clan (b. 1821).
2. Through her father, Kim Deok-su was an 8-great-grandniece of Queen Inmok.
3. "Kim Suk" was her official name, while "Kim Deok-su" was her original name by birth, whereas the more known one.
4. A 9-great-grandson of Deokheung Daewongun, the 7th son of Jungjong of Joseon.

Further reading

Ju, Myeong-jun (2006). 의친왕의 상해 망명기도 사건 (in Korean).

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v t e House of Yi
List of Monarchs Kings of Joseon Emperor of Korea King Yi Genealogy Jeonju Yi clan Royal Family Association
Kingdom of Joseon and Korean Empire (1392–1910)
Posthumous	Mokjo (1392) Ikjo (1392) Dojo (1392) Hwanjo (1392) Deokjong (1475) Wonjong (1634) Jinjong (1776) Jangjo (1899) Munjo (1834)
King of Joseon (1392–1897)	Taejo (1392–1398) Jeongjong (1398–1400) Taejong (1400–1418) Sejong (1418–1450) Munjong (1450–1452) Danjong (1452–1455) Sejo (1455–1468) Yejong (1468–1469) Seongjong (1469–1494) Yeonsan (1494–1506) Jungjong (1506–1544) Injong (1544–1545) Myeongjong (1545–1569) Seonjo (1569–1608) Gwanghae (1608–1623) Injo (1623–1649) Hyojong (1649–1659) Hyeonjong (1659–1674) Sukjong (1674–1720) Gyeongjong (1720–1724) Yeongjo (1724–1776) Jeongjo (1776–1800) Sunjo (1800–1834) Heonjong (1834–1849) Cheoljong (1849–1864) Gojong (1864–1897)
Emperor of Korea (1897–1910)	Gojong (1897–1907) Sunjong (1907–1910)
Crown Prince	Yi Bang-seok (1392–1398) Grand Prince Yangnyeong (1404–1418) Uigyeong (1455–1457) Yi Hwang (1502–1506) Sunhoe (1557–1563) Yi Ji (1608–1623) Sohyeon (1625–1645) Hyojang (1725–1728) Sado (1736–1762) Uiso (1751–1752) Munhyo (1784–1786) Hyomyeong (1812–1830) Uimin (1907–1910)
Daewongun	Deokheung (1569) Jeongye (1849) Heungseon (1864)
Rival king	Heungan (1624)
Korea under Japanese rule (1910–1945)
King Yi (1910–1947)	King Emeritus (Deoksugung) Yi Hui (1910–1919) King (Changdeokgung) Yi Cheok (1910–1926) Yi Un (1926–1947) Crown Prince Yi Un (1910) Yi Ku (1931)
Post-World War II (1945–present)
Director of the Royal Family Association (1957–)	In office Yi Un (1966) Yi Ku (1973) Yi Won (2007) Posthumous recognition Yi Kang
Pretenders	Yi Seok (2005–present) Yi Hae-won (2006–2020)
denotes that the king was deposed and never received a temple name. Those who were listed were not reigning monarchs but posthumously recognized; the year following means the year of recognition. Only the crown princes that didn't become the king were listed; the former year indicates when one officially became the heir and the latter one is that when one died/deposed. Those who ascended to the throne were excluded in the list for simplification. The title given to the biological father, who never reigned, of the kings who were adopted as the heir to a precedent king. The de jure monarch of Korea during the era was the Emperor of Japan, while the former Korean emperors were given nobility title "King Yi" instead.

v t e Kings Yi & Dukes Yi of Korea (李王・李公, 1910–1947)
King Emeritus Yi of Deoksu Palace	Yi Hui (1910–1919)
King Yi of Changdeok Palace	Yi Cheok (1910–1926) Yi Un (1926–1947)
Queen consort Yi of Changdeok Palace	Yun-ssi, Queen consort of Yi Cheok (1910–1926) Bangja, Queen consort of Yi Un (1926–1947) Queen dowager of Yi Yun-ssi, Queen dowager of Yi (1926–1947) Crown Princess of Yi Bangja, Crown Princess of Yi (1920–1926)
Crown Prince of Yi	Yi Un (1910–1926) Yi Ku (1931–1947)
Dukes of Yi	Duke Yi Hui Duke Yi Hui (1910–1912) Duke Yi Jun (1912–1917) Duke Yi U (1917–1945) Duke Yi Cheong (1945－1947) Duchess consort Yi-ssi, Duchess consort of Yi Hui (1910) Kim-ssi, Duchess consort of Yi Jun (1912) Chan-ju, Duchess consort of Yi U (1935) Duke Yi Kang Yi Kang (1910–1930) Yi Geon (1930–1947) Duchess consort Kim-ssi, Duchess consort of Yi Kang (1910) Seiko, Duchess consort of Yi Geon [ja] (1931)
See also House of Yi

• 1877 births
• 1955 deaths
• House of Yi
• Activists for Korean independence
• Kazoku
• Imperial Korean princes
• Keio University alumni
• Roanoke College alumni
• South Korean Roman Catholics
• Recipients of the Order of the Rising Sun with Paulownia Flowers
• Lieutenant generals of Korean Empire
• Sons of emperors
• Political office-holders of the Korean Empire
• Converts to Roman Catholicism
• People from Seoul
• Princes of Joseon