Song Chun-gil
Song Chun-gil (; 28 December 1606 – 2 December 1672), also known by his art name Tongch'untang, was a Korean politician and Neo-Confucian scholar, who lived during the Joseon period.

Born in Okcheon, North Chungcheong Province, he was the best friend and a distant relative of Song Si-yol. His daughter, Lady Song, was the mother of Queen Inhyeon, who would become the second wife of King Sukjong.

Relations with the Royal Family 
Song Chun-gil's descendants through his second daughter had made him the maternal grandfather of Min Jin-hu, Min Jin-won, and Queen Inhyeon. He eventually became the 5th great-grandfather of Empress Myeongseong and the 6th great-grandfather of Empress Sunmyeong.

When Empress Myeongseong became Queen, she also close connections to the families of her 5th maternal great-grandmother (Eunjin Song clan), and 4th maternal great-grandmother (Jinju Jeong clan).

Family 
 Father
 Song Yi-ch'ang (; 1561 – May 1627)
 Mother
 Lady Kim of the Gwangsan Kim clan (; 1561–1621); daughter of Kim Eun-hwi () and cousin of Kim Jang-saeng
 Wives and their issue
 Lady Kim () — no issue.
 Lady Chŏng of the Jinju Chŏng clan (; 1604–1655); daughter of Chŏng Kyŏng-se (정경세, 鄭經世; 1563–1633)
 Son: Song Kwang-sik (; 1620–1664)
 Son: Song Sŏk-tae (; 1625 – ?)
 Daughter: Lady Song of the Eunjin Song clan (; 1628–1662)
 Daughter: Internal Princess Consort Eunseong of the Eunjin Song clan (; 1637–1672); Min Yu-chung’s second wife
 Daughter: Lady Song of the Eunjin Song clan (; 1639 – ?)
 Daughter: Lady Song of the Eunjin Song clan (; 1641 – ?)
 Concubines and their issue
 Yi Rang, Lady Yi (; 1610–1631); daughter of Yi Tong-hyŏng (이동형; 1580 – ?) — no issue.
 Lady Min of the Yeoheung Min clan (; 1644–1712); daughter of Min Kyu ()
 Son: Song Kwang-rim (; 1666 – ?)
 Son: Song Kwang-chŏng (; 1668–1734)
 Son: Song Kwang-yŏng (; 1670 – ?)
 Son: Song Pyŏng-ik (; 1677 – ?)

Works
 Eorokhae ()
 Dongchundangjip ()

See also 
 Kim Man-jung
 Kim Jip
 Kim Yuk
 Gwon Sang-ha
 Heo Mok
 Yun Hyu
 Yun Seon-do
 Hong U-won

References

Site web 
 Song Jungil:Naver 
 Song Jungil 
 Song Jungil:Korean historical people information 

1606 births
1672 deaths
17th-century Korean writers
Joseon scholar-officials
Korean scholars
Korean Confucianists
17th-century Korean philosophers
Chun-gil