Chonsoun

Princess Chŏngsun (; 1385 – 25 August 1460) was a royal princess during Joseon era. She was the eldest legitimate daughter of Taejong of Joseon and his consort, Queen Wŏn'gyŏng.

Life Lady Yi was born in 1385 during the reign of King U of Goryeo Her parents were Yi Pangwŏn and Lady Min.

In 1399, she was chosen to marry Yi Paekkang of the Gyeongju Yi clan, son of Yi Kŏyi , Military commander of Kanggye. In 1401, after her father seized the throne, Lady Yi received the title Princess Chŏngsun and her husband received the title Internal Prince Ch'ŏngp'yŏng . During her marriage, she became pregnant only once and gave birth to a healthy daughter, Princess Chŏnggyŏng, who would live to adulthood.

Family Father: King Taejong of Joseon (13 June 1367 – 30 May 1422) Paternal Grandfather: King Taejo of Joseon (27 October 1335 – 18 June 1408) Paternal Grandmother: Queen Sinŭi of the Cheongju Han clan (1337 – 21 October 1391) Mother: Queen Wŏn'gyŏng of the Yeoheung Min clan (29 July 1365 – 18 August 1420) Maternal Grandfather: Min Che, Duke Mundo, Internal Prince Yŏhŭng (; 1339 – 15 January 1408) Maternal Grandmother: Princess Consort Samhan'guk of the Yeosan Song clan ( 1342–1414); Consorts and their respective issues:

Husband: Yi Paekkang, Internal Prince Ch'ŏngp'yŏng of the Gyeongju Yi clan (이백강 청평위, 1583 – 1451) Princess Chŏnggyŏng of the Gyeongju Yi (정경부인 청주 이씨), 1st daughter Son-in-law: Yi Kyerin of the Hansan Yi clan (이계린)