Princess Joguk (1308 – 26 November 1325), formally known as Grand Princess Joguk (Korean: 조국장공주; Hanja: 曹國長公主; lit. 'Grand Princess of the State of Jo'), was a member of the imperial family of the Yuan dynasty who became a Korean royal consort as the second wife of King Chungsuk of Goryeo. Her personal name was Borjigin Jintong (Mongolian: Боржигин Жинтун).
Biography
Early Life
Princess Joguk was born in 1308 in the Yuan dynasty. She was the daughter of Amuga, the granddaughter of Darmabala, and the sister of Bayankhutag. She belonged to the Borjigin clan, the imperial clan of the Mongol Empire and the Yuan dynasty.
Marriage
In 1325, she married King Chungsuk of Goryeo (r. 1313–1330 and 1332–1339) in Beijing (Dadu). King Chungsuk was approximately 14 years her senior. Upon their arrival in Goryeo, they traveled to Yongsan, Hanyang (modern-day Seoul), where she gave birth to their son, referred to as Heir Successor Yongsan. Shortly after the birth, Princess Joguk died in the Goryeo Royal Palace in Yongsan at approximately 16 or 17 years of age. Following her death, the Yuan court sent Tal Pil-al (탈필알; 脫必歹) to oversee her ancestral rites.
Posthumous Title
In 1343, during the reign of Yuan Emperor Toghon Temür, she was posthumously granted the imperial title Grand Princess Joguk (조국장공주; 曹國長公主).
Family Relations
Princess Joguk's niece, Princess Noguk, later became the primary wife of King Gongmin of Goryeo (r. 1351–1374). Her marriage to King Chungsuk was part of a broader pattern of arranged marriages between the Yuan imperial clan and the Goryeo royal family, reflecting Goryeo's vassal status under Mongol rule during this period.
