Seo Jae-chang
Seo Jae-chang(hangul:서재창, hanja:徐載昌, 1866 – December 13, 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 a 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