Yeonguijeong

Yeonguijeong
Portrait of Ha Yeon who served as Yeonguijeong during the King Sejong's reign.
Korean name
Hangul	영의정/영상/상상/수규/원보
Hanja	領議政/領相/上相/首揆/元輔
Revised Romanization	yeong-uijeong[1]/ sangsang/ sugyu/ wonbo
McCune–Reischauer	yŏng'ŭijŏng/sangsang/sukyu/wonbo

Yeonguijeong (Korean: 영의정; Korean pronunciation: [jʌŋ ɰi tɕʌŋ]) was a title created in 1400, during the Joseon and Korean Empire periods (1392–1910), and given to the Chief State Councillor^[1][2] as the highest government position of "Uijeongbu" (State Council). Existing for over 500 years, the function was handed over in 1895 during the Gabo Reform to the newly formed position of the Prime Minister of Korea.^[3][4] Only one official at a time was appointed to the position and though was generally called Yeongsang, was also referred to as Sangsang, Sugyu or Wonbo. Although the title of Yeonguijeong was legally defined as the highest post in charge of all state affairs, its practical functions changed drastically depending on the particular King and whether that King's power was strong or weak.^[4]