**Eo Yu-so** (魚有沼, 1434–1489) was a [[military officer]] of [[Joseon]]. His courtesy name was Jayu (子遊), and his [[family seat]] was [[Chungju Eo clan|Chungju]]. He took part in campaigns against the [[Jurchen]] on the frontier and in the suppression of [[Yi Si-ae's Rebellion]]. His posthumous name was Jeongjang (貞莊). ## Life ### Early life Eo Yu-so was born in 1434 at Jihaeng-ri (present-day Jihaeng-dong, [[Dongducheon]]) in Idam-myeon, Yangju County, [[Gyeonggi Province]], as the son of [[Eo Deuk-hae]], who had served as [[commander]] of the naval and land forces of [[Pyeongan Province]]. His courtesy name was Jayu (子遊). In the first year of King Munjong (1451), at the age of 18, he entered government service through [[Hereditary appointment system|eumseo]] (蔭敍) and was appointed to the [[Naegeumwi]]. ### Suppression of Yi Si-ae's Rebellion and merit certificate Afterward, in the second year of [[Sejo of Joseon|King Sejo]] (1456), he passed the military examination as first place, and then served as Director of the Sabosi (司僕寺直長) and as an inspector (監察). In the sixth year of Sejo (1460), he achieved a great merit in the campaign against the "Yain" (野人), was promoted, and became Tongnyemun Tongchan (通禮文通贊). In the ninth year of Sejo (1463), he served as magistrate of [[Hoeryong|Hoeryong]] and then took part in the suppression of [[Yi Si-ae's Rebellion]]. Yi Si-ae had also been a magistrate of Hoeryong; his father, Yi In-hwa, had served as magistrate of Pyeongheung-daebu (判永興大府使), and his grandfather had been a scion of a yangban family who served as Geomgyo Munhabusa (檢校門下府事). However, Yi Si-ae, having lost a parent and having retired from the post of Hoeryong magistrate, was at home when he rebelled together with his younger brother Yi Si-ham.[^1] In the thirteenth year of Sejo (1467), he pacified [[Yi Si-ae's Rebellion]] as commander of the left great division. Afterward he was named a First-class Meritorious Subject of Jeokgae (適開功臣), enfeoffed as Lord of Yeseong, and specially promoted to [[Minister of Public Works]]. In the [[winter]] of that year, when the [[Ming dynasty]] attacked the Jianzhou Guard, he achieved great merit as commander of the left great division, and in the twelfth month of that year he was honored with the Second-class Military Merit. After King Yejong ascended the throne, in the first year of [[Yejong of Joseon|King Yejong]] (1469), he became military governor of [[North Hamgyong Province]], and in the second year of [[Seongjong of Joseon|King Seongjong]] he was named a 4th-class Meritorious Subject of Jwari. He twice served as military governor of [[North Pyongan Province]]. ### Official career Afterward, he served as Deputy Minister of Uijeongbu, concurrently as Chief Commissioner of the [[Oui Dochongbu|Office of the Five Military Commands]], and in the following year as [[Minister of War]]. In the ninth year of Seongjong (1478), he served as Right Chancellor of the [[State Council (Joseon)|Uijeongbu]]. In the tenth year of Seongjong (1479), when the Jianzhou Guard was attacked, he set out as commander of the western expedition, but was temporarily exiled on the charge of withdrawing his troops for tactical reasons, and was later pardoned. He then served as Chief Commissioner of the Office of the Five Military Commands, [[Minister of Personnel]], Vice Chief of the Jungjungchubu, and Inspector of Pyeongan Province. In the twelfth year of Seongjong (1481), he served as Minister of Personnel and Jungjungchubu Chief, and then went out as [[Governor (Joseon)|governor]] of Pyeongan Province. In the nineteenth year of Seongjong (1488), he rose to Pan Jungchubu Chief and concurrently Chief Commissioner of the Office of the Five Military Commands. In the tenth month of the twentieth year of Seongjong (1489), when the king conducted a military review in Gyeonggi, he accompanied the king. When he arrived at Yeongpyeong County in [[Pocheon]], he died suddenly within the royal enclosure. His posthumous name was Jeongjang (貞莊). ### After death King Seongjong greatly mourned his sudden death, withdrew the court from audiences, and bestowed generous funerary gifts. His grave is located at San 72, Gwangam-dong, Dongducheon-eup (present-day [[Dongducheon]]), Yangju County, [[Gyeonggi Province]]. On 28 April 1986 it was designated as Dongducheon Local Cultural Heritage No. 4.[[Cultural heritage of Dongducheon|]] ## Other ### Jeongjang Road and Jeongjang Underpass In Saengyeon-dong, [[Dongducheon]], [[Gyeonggi Province]], his hometown, there is a road named "Jeongjang Road" after his posthumous name. In 1987, an underpass named Jeongjang Underpass was opened after his name, but the Jeongjang Underpass was closed in 2008. ### Eo U-dong scandal Living next to [[Eo U-dong]], he summoned her and also had a relationship with her. However, when interrogated under torture, he denied his relationship with [[Eo U-dong]]. According to the statements of [[Eo U-dong]] and [[Bang Sansu]], who were taken to the [[Office of Royal Justice]] in the 1480 scandal, "Eo Yu-so once stayed at a house next to Eo U-dong's, secretly sent for her to be received into that house, committed adultery with her in the ancestral shrine, and later arranged a meeting, giving her a jade ring [玉環] as a token of trust."[^2] When [[Eo U-dong]] named Eo Yu-so (魚有沼), Noh Gong-pil (盧公弼), Kim Se-jeok (金世勣), Kim Ching (金偁), Kim Hwi (金暉), and Jeong Suk-ji (鄭叔墀), at the persuasion of Bang Sansu, they were all later released on the grounds that there was no evidence.[^2] ## In historical dramas - [[The King and I (TV series)|The King and I]] – [[Kim Ik-tae]] ## References - Veritable Records of King Sejo - Veritable Records of King Yejong - Veritable Records of King Seongjong - Daedong Yasung - Yangju County Gazetteer ## Notes [^1]: There is also a theory that the rebellion by Yi Si-ae was related to the deposition of King Danjong. [^2]: Veritable Records of King Seongjong, vol. 122, 18th day of the 10th month, 11th year of Seongjong (gyeongja year, 1480), 5th article.