Seo Jae-chang
Seo Jae-chang (; 29 October 1866 – 13 December 1884) was a Korean politician, serviceperson, liberal ideologist during the Joseon dynasty. He was a member of the reformist Party(개화당;開化黨). In 1884 he was a participant in the Gapsin coup. The coup failed and he was arrested and executed. Seo was the younger brother of Seo Jae-pil. Life Jae-chang was born 1866 In Bosong in South Jeolla Province. He was the fourth son of Seo Gwang-ho, governor of Dongbok County and Lady Lee of Seongju. His elder brothers were Jae-chun, Jae-hyung and Jae-pil and his younger brother was Jae-wu. He had two sisters. He studied in Japan, recommended by Yu Dae-chi and Lee Dong-in. Jae-chang studied sericulture and military science. Later he returned to his country. In 1884 he adopted a distant relation Seo Sang-wu's adopted son. In January to July, 1884, he returned to Japan. He entered a Toyama military school with Jae-pil, but in July he went to Seoul to plan a revolt with Kim Ok-kyun, Park Yeong-hyo and other members of Reformist Partys, Hong Yeong-sik, Park Yeong-kyo, Yun Chi-ho, Yun Ung-ryeol, Jae-pil and his father's fifth cousin Seo Kwang-pum. In October, they undertook the Gapsin coup in Seoul. Queen Myeongseong mobilized Qing dynasty forces, who killed Hong Young-sik and Park Yeong-kyo in battle. The coup failed. In October 21, Jae-chang escaped, but was seized by the Chinese. He was sent to Seoul prison of Uikeumbu(의금부;義禁府). On December 13, he was executed by firing squad, Gungigam (군기감; 軍器監) in Seoul. His family was arrested and to imprisonment, with some committing suicide. Only Jae-pil escaped on a Japanese boat to exile in Tokyo. Family Grandfather Seo Sang-gi (서상기, 徐相夔) Adoptive Grandfather - Seo Sang-woo (서상우, 徐相雨) (1831 - 1903) Grandmother Lady Kim of the Wolsan Kim clan (울산 김씨); daughter of Kim Gu-jo (김구조, 金龜祖) Father Seo Gwang-hyo (서광효, 徐光孝) (22 August 1800 - 19 December 1884) Adoptive Father - Seo Gwang-rae (서광래, 徐光萊) Uncle - Seo Gwang-gyo (서광교, 徐光敎) (19 February 1827 - 22 June 1925) Aunt - Lady Min of the Yeoheung Min clan (여흥 민씨) (1826 - 23 December 1893) Cousin - Seo Jae-yeong (서재영, 徐載榮) (15 October 1867 - 24 February 1922) Cousin-in-law - Lady Kim of the Gyeongju Kim clan (경주 김씨) (1864 - 9 August 1934) First cousin once removed - Seo Jong-seok (서종석, 徐琮錫) (24 January 1887 - ?) First cousin once removed - Seo Chan-seok (서찬석); possibly died at birth First cousin once removed - Seo Hae-seok (서해석, 徐海錫) Mother Lady Yi of the Seongju Yi clan (성주 이씨, 星州 李氏) (1830 - 19 December 1884) Grandfather - Yi Gi-dae (이기대, 李箕大) or Yi Yeong-seok (이영석) Siblings Older sister - Lady Seo of the Daegu Seo clan (서씨) Brother-in-law - Jeong Hae-eun (정해은, 鄭海殷) of the Yeonil Jeong clan Older half-brother - Seo Jae-hyeong (서재형, 徐載衡) (1851 - 13 December 1884) Older brother - Seo Jae-chun (서재춘, 徐載春) (2 March 1854 - 5 September 1888) Sister-in-law - Lady Song of the Eunjin