| Princess Myeongsuk 명숙공주 | |
| Princess of Joseon | |
| Father: | Deokjong of Joseon |
| Mother: | Queen Sohye of the Cheongju Han clan |
| Issue: | Hong Baek-gyeong[1] |
| Birth Name: | Yi Gyeong-geun |
| Birth Date: | 1456 |
| Birth Place: | Joseon |
| Death Date: | 1482 (aged 25–26) |
| Death Place: | Joseon |
| Place Of Burial: | Princess Myeongsuk's Mausoleum, 86–9, Yongdu-dong, Deokyang-gu, Goyang, Gyeonggi Province |
| Full Name: |
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| House: | Jeonju Yi (by birth) Namyang Hong (by marriage) |
Princess Myeongsuk (; 1456–1482), or Princess Myeongui, posthumously honoured as Princess Taean,[2] was a Joseon Princess as the only daughter of Deokjong of Joseon and Queen Insu.
The princess was born on 1456 and was named Yi Gyeong-geun .[3] She was the older sister of the future Seongjong of Joseon and the younger sister of Grand Prince Wolsan.[4] [5]
After her father's death in 1457, the 3rd year of King Sejo's reign, the Princess, along with her mother and brothers lived outside the palace.
On 19 December 1466, she married Hong Sang of the Namyang Hong clan who was honoured as Prince Consort Dangyang .[6]
In 1470, after her younger brother, Grand Prince Jalsan, ascended the throne, her father was posthumously elevated to King Deokjong and her mother was honoured as Queen Insu, and later promoted to Queen Dowager .
The new King also honoured his older sister as Princess Myeongsuk, formally called Princess Myeongui. She gave birth to a son, Hong Baek-gyeong, in 1481.
The princess later died on October 4, 1482, in the 13th year of the reign of her brother, Seongjong of Joseon,[7] and it was reported that he was very sad about her death.
Her son. Hong Baek-gyeong, later married a woman from the Seongju Yi clan, and had a daughter and son.
The princess' granddaughter later married the future Queen Dangyeong's older brother, Shin Hong-pil. Shin also happened to be the Deposed Queen Shin's nephew, and intermarried into the Cheongju Han clan as Queen Dangyeong's and Shin Hong-pil's mother was a first cousin thrice removed to Princess Myeongsuk through Queen Insu.