Royal Consort Uibin Seong

Uibin Seong (; 6 August 1753 – 4 November 1786) or Concubine Ui, of the Changnyeong Seong clan, personal name Seong Deok-im, was the beloved consort of King Jeongjo, the 22nd monarch of Joseon, and the biological mother of Crown Prince Munhyo.

Biography Early life Lady Seong was born during Yeongjo's reign, into the Changnyeong Seong clan. She was the youngest child of Seong Yun-u and his second wife, a lady from the Buan Im clan. Lady Seong had seven siblings: four older brothers, two older sister, and one younger half-brother.

Seong Yun-u's first wife was from the Jangheung Ma clan. After her death, he married Lady Im, the daughter of Im Jong-ju, a minor government official. She died in 1756, three years after giving birth to Lady Seong. Seong Yun-u's third wife came from the Danyang Ji clan.

Their family was quite poor, and at the time of Lady Seong's birth, her father worked as a steward for Hong Bong-han, the maternal grandfather of King Jeongjo.

Some time before 1782, she received Jeongjo's favor and was promoted to sangui (상의; 尙儀), a female official of the senior fifth rank. It is recorded that she was pregnant two times between 1780 and 1782, but both pregnancies ended in miscarriage.

On 13 October 1782, Lady Seong gave birth to her first child, Yi Yang. That same day, she was appointed as a royal consort of the senior third rank (소용; 昭容; soyong). Almost three months later, in late December 1782, her son was given the title of prince royal (원자; 元子; wonja).

The following year, Lady Seong was promoted to the senior first rank (빈; 嬪; bin), and Jeongjo personally chose for her the honorific title ui (의; 宜), meaning "proper". The unborn child died with her. King Jeongjo wrote her an eulogy, in which he described his grief and declared his love for her. It was said that Lady Seong was the only woman he loved amongst his consorts.

She was initially buried about 100 steps from her son, Crown Prince Munhyo. King Jeongjo planted 26.000 trees within the grounds, known today as Hyochang Park and situated in Yongsan District, Seoul.

In 1944, during the Japanese occupation, both tombs were relocated to the Seosamneung Cluster in Goyang, Gyeonggi Province. Crown Prince Munhyo was buried next to his uncle, Crown Prince Uiso, while Lady Seong was buried 2 km away, in the royal consorts' cemetery. Her tomb is called Uibinmyo (의빈묘; 宜嬪墓).

Lady Seong's spirit tablet was enshrined in Uibingung (의빈궁; 宜嬪宮), at Chilgung (칠궁; 七宮), the place which now houses the spirit tablets of seven royal consorts who gave birth to kings. In 1908, during Sunjong's reign, Uibingung was closed. However, the name was preserved and the annual rituals continued to be held.

Family Parents Father: Seong Yun-u (; 1709–1769) Grandfather: Seong Su-san (; 1668–1749) Grandmother: Honorable Madame, of the Gimhae Kim clan (; 1674–1698), Seong Su-san's first wife Biological grandmother: Honorable Madame, of the Changwon Hwang clan (; 1677–1747) Mother: Lady, of the Jangheung Ma clan (; 1715–?); Seong Yun-u's first wife Biological mother: Honorable and Respectful Madame, of the Buan Im clan (; 1722–1756) Grandfather: Im Jong-ju Stepmother: Lady, of the Danyang Ji clan ; Seong Yun-u's third wife Sibling(s) Elder sister: Lady, of the Changnyeong Seong clan Brother-in-law: Kang Deok-sun Nephew: Kang Ui-sin (; 1755–?) Elder brother: Seong Dam (; 1741–1783) Sister-in-law: Lady, of the Seongju Yi clan (; 1739–1770) Sister-in-law: Lady, of the Jeonju Yi clan (; 1751–1799) Nephew: Seong Guk-min (; 1766–1809) Niece-in-law: Lady, of the Gangneung Yu clan (; 1768–1809) Nephew: Seong Hui-min (; 1780–1809) Niece-in-law: Lady, of the Jeonju Yi clan Elder brother: Seong Hyeob (; 1742–1810) Sister-in-law: Lady, of the Gangneung Choe clan Sister-in-law: Lady, of the Danyang Mun clan Nephew: Seong Do-min Niece-in-law: Lady, of the Miryang Park clan Nephew: Seong Ho-min Niece-in-law: Lady, of the Cheongju Han clan Elder brother: Seong Wan (; 1743–1806) Sister-in-law: Lady, of the Cheongju Han clan (; 1742–1794) Nephew: Seong Sun-min (; 1763–1849) Niece-in-law: Lady, of the Danyang Woo clan Nephew: Seong Deok-min (; 1782–1828) Niece-in-law: Lady, of the Uiryeong Nam clan (; 1780–1812) Niece: Lady, of the Changnyeong Seong clan Nephew-in-law: Jo Sang-ju Elder brother: Seong Suk Nephew: Seong Yeo-min Elder sister: Lady, of the Changnyeong Seong clan Brother-in-law: Yun Gwang-eun (?–1807) Nephew: Yun Dong-cheol Younger brother: Seong Heub (; 1762–?) Sister-in-law: Lady, of the Geumcheon Na clan Nephew: Seong Jun-min Husband Jeongjo of Joseon (; 28 October 1752 – 18 August 1800) Issue Miscarriage (1780) Miscarriage (1781) Yi Yang, Crown Prince Munhyo (문효세자 이양; 文孝世子 李㬀; 13 October 1782 – 6 June 1786), Jeongjo's first son Unnamed daughter (1784), Jeongjo's first daughter Unborn child (1786)

In popular culture Portrayed by Jung Eun-suk in the 1989 MBC TV series 500 Years of the Joseon Dynasty: Pa Mun. Portrayed by Lee Han-na and Han Ji-min in the 2007 MBC TV series Lee San, Wind of the Palace. Portrayed by Lee Seol-ah and Lee Se-young in the 2021 MBC TV series The Red Sleeve.