Queen Myeongui

Queen Myeongui of the Chŏngju Yu clan (d. 8 August 1112) was a Korean queen consort as the first and primary wife of King Sukjong of Goryeo and the mother of most of his children.

Marriage and palace life
She married Sukjong when he was still known as Duke Gyerim. Before 1079, she was given royal title as Princess Myeongbok while live in Myeongbok Palace and later changed into Princess Yeondeok  when she moved to Yeondeok Palace. Her mother, Lady Kim was formally called as "Grand Lady of the Nakrang State".

Then, following her husband who ascended the throne as a King, she become a Queen Consort in 1099. But, in the Goryeosa, there was some misunderstood because her name after become a queen consort, her clan name was written as Yi clan which this wasn't her clan.

However, on 10 November 1105, her husband passed away and their oldest son, Wang U ascended the throne as Yejong of Goryeo those making Yu honoured both of Queen Mother and Grand Queen Mother  in 1105. Beside Yejong, she bore Sukjong 6 other sons and 4 daughters. After that, she was given Sungmyeong Mansion in Cheonhwa Hall  as her residence and affiliated institution. As a queen mother, her birthday was also specially celebrated.

Death
On 8 August 1112, the queen mother caught an illness and died suddenly after went to recuperation outside the palace at her old age in Sinbak Temple. On 8th month (Lunar calendar) in the same year, she was buried in Sungneung Tomb and received her posthumous name.

Funeral
During her funeral, the Liao dynasty sent their envoys to mourn. But, seeing this, the internal court said: "Your Majesty the King, isn't this the first time they've been to the Queen Mother's ancestral rites?, Congratulations on showing such courtesy to the In State!" ("임금님, 쟤네들이 태후님 제사 지내러 온 건 이번이 처음 아닌가요? 인국(隣國)이 이런 예우(禮)를 보여준걸 축하드립니다!").

Posthumous name

 * In 1140 (18th year reign of King Injong), name Yu-ga was added.
 * In October 1253 (40th year reign of King Gojong), name Gwang-hye was added to her posthumous name too.