Queen Jeongsuk of the Dongju Choe clan (Korean: 정숙왕후 최씨; Hanja: 貞淑王后 崔氏; 1232–20 September ?) was the second wife of Yi Haengni and mother of Yi Chun, making her the great-grandmother of Yi Seonggye, the founder of the Joseon Dynasty. She was honoured as Jeong-Bi (정비; 貞妃; "the virtuous queen") at first.

She was born in 1232 as the daughter of Choe Gi-Yeol, Prince Anbyeon (최기열 안변군) from the Dongju Choe clan (동주 최씨; 東州 崔氏) and his unnamed wife. She was the second wife of Yi Haengni (이행리) because his first wife, Lady Son (손씨) died too early.

On 28 July 1392, when her great-grandson, Yi Seong-Gye (이성계) established a new dynasty, she was given the royal title Jeong-bi (정비; 貞妃; literally: Queen Jeong or Consort Jeong)^[1] and her husband was given the title King Ik (익왕; 翼王). Later on 22 April 1411, her great-great-grandson, Taejong of Joseon, gave her a posthumous name, Queen Jeongsuk (정숙왕후; 貞淑王后).^[2]

With Yi Haeng-ni, she had 7 sons and 1 daughter. However, she later died on 20 September in an unknown year. Her tomb was located in Sukneung, Muncheon-gun, Hamgyeongnam-do and her husband's tomb was located in Jireung, Anbyeon-gun, Hamgyeongnam-do.^[3]

• Father - Choe Gi-Yeol, Prince Anbyeon (최기열 안변군; 1205–?)
• Unnamed mother (1205–?)
• Spouse - Yi Haeng-ni, King Ikjo of Joseon (조선 익조; 1236–?)
  • Father-in-law - Yi Ahn-sa, King Mokjo of Joseon (조선 목조; 1204–1274)
  • Mother-in-law - Queen Hyogong of the Pyeonchang Yi clan (효공왕후 이씨; 1207–?)
• Issue
  • Son - Yi Song, Grand Prince Hamwon (이송 함원대군; 1256–?)
  • Son - Yi Won, Grand Prince Hamcheon (이원 함천대군; 1260–?)
  • Son - Yi Go-tae, Grand Prince Hamneung (이고태 함릉대군; 1263–?)
  • Son - Yi Chun, King Dojo of Joseon (조선 도조; 1265–1342)
  • Son - Yi Jeon, Grand Prince Hamyang (이전 함양대군; 1267–?)
  • Daughter - Princess Anui (안의공주; 1269–?)
  • Son - Yi Eung-sin (이응신; 1270–?)
  • Son - Yi Eung-geo, Grand Prince Hamseong (이응거 함성대군; 1274–?)

• Queen Jeongsuk on the Encyclopedia of Korean Culture (in Korean).