Queen Wondeok of the Yu clan (Korean: 원덕왕후 유씨; Hanja: 元德王后 柳氏; d. 1239) was a Goryeo royal family member as the descendant of King Munjong.
[7] However, in 1197, her father-in-law, King Myeongjong was deposed and imprisoned in Changrak Palace by Ch'oe Ch'ung-hŏn and Choe Chung-su.
She formally became Queen Consort and was given the royal title of Princess Yeondeok (연덕궁주; 延德宮主), and once again resided in the palace of Manwoldae.
Although the date she formally became a queen dowager was unknown, but in 1215, both she and King Gojong stayed in Western Cheongju Palace (청주동궁; 淸州洞宮) for a while.
In order to mourn his maternal grandmother, Gojong was said to wore a So-bok (소복) for three days after her death.
In 1232, she left Sangdo (상도; 上都) and moved to Gangdo (강도; 江都) while her daughter-in-law died in the same year.