title: Seo Yeongsuhap
text: # Seo Yeongsuhap
  
  Seo Yeongsuhap (서영수합, 徐令壽閤; 1753–1823) was a Korean poet.
  
  ## Biography
  
  Seo Yeongsuhap was born into a high-ranking family, the Dalseong Seo clan (달성 서씨, 達城 徐氏), as the daughter of the governor of Gangwon Province, Seo Hyeong-su.
  
  She was reportedly known for her abilities in mathematics. She published hundreds of poems in an anthology, and included an appendix to her husband's memoir. In the Korean society of her time, women were not supposed to have any official role, and she was one of very few women published during the Joseon dynasty. Alongside Yi Bingheogak, she is mentioned as one of two female scholars to make a name for themselves within practical learning.
  
  She was later arranged to marry Hong In-mo of the Pungsan Hong clan, a royal official. They had three sons, Hong Seok-ju [ko], Hong Gil-ju, and Hong Hyeon-ju [ko], and a daughter, Hong Yuhandang. All four became poets as well, and Gil-ju under the influence of his mother also became a notable mathematician. Her third son, Hong Hyeon-ju, married Princess Sukseon, the only daughter of King Jeongjo of Joseon, who is herself known for inventing Kkakdugi, i.e. the diced radish kimchi.
  
  ## Family
  
  * Father - Seo Hyeong-su (서형수)
  * Husband - Hong In-mo (홍인모, 洪仁謨) (1755 – 1812)
     * Father-in-law - Hong Nak-seong (홍낙성, 洪樂性) (1718 - 1798)
     * Mother-in-law - Lady Sim of the Cheongsong Sim clan (청송 심씨, 靑松 沈氏)
  * Children
     * Son - Hong Seok-ju (홍석주, 洪奭周) (1774 - 1842)
     * Daughter - Hong Won-ju (홍원주, 洪原周), Yuhandang (유한당) (1783 - ?)
     * Son - Hong Gil-ju (홍길주, 洪吉周) (1786 - 1841)
     * Son - Hong Hyeon-ju (홍현주, 洪顯周), Lord Yeongmyeong (영명위, 永明尉) (1793 - 1865)
        * Daughter-in-law - Princess Sukseon (숙선옹주) (11 April 1793 – 7 June 1836)
           * Grandson - Hong Woo-cheol (홍우철, 洪祐喆) (1813 – 1853)
              * Granddaughter-in-law - Lady Yi of the Jeonju Yi clan (전주 이씨, 全州 李氏) (1815 - 1868)
                 * Great-Grandson - Hong Seung-gan (홍승간, 洪承幹) (1834 – 1845)
                 * Great-Grandson - Hong Seung-eok (홍승억, 洪承億) (1842 – 1882)
  