also: だいいんくん
noun
Daewongun; father of the king (Joseon Korea)
Historical title for the father of a reigning king in Joseon-era Korea, especially referring to Heungseon Daewongun, the father of Emperor Gojong. Used in historical contexts.
大院君は、朝鮮王朝時代の国王の父に与えられた称号です。
Daewongun was a title given to the father of the king during the Joseon Dynasty.
興宣大院君は、高宗の父として知られています。
Heungseon Daewongun is known as the father of Emperor Gojong.
From Korean 대원군 (大院君, Daewongun), a title composed of 大 (great), 院 (institution/palace), and 君 (lord/prince). The reading たいいんぐん is the standard Sino-Japanese reading; だいいんくん is a variant.