Following the death of her cousin Yi Ku on 16 July 2005, members of the imperial family chose his adopted son, Yi Won, as the next Head of the Korean Imperial Household, bestowing on him the title, the Hereditary Prince Imperial of Korea (Hwangsason), representative of an inherited title from Yi Ku.
Following Yi Ku's demise on July 16, 2005, members of the imperial family selected his adopted son, Yi Won, as the next Head of the Korean Imperial Household, bestowing upon him the title, the Hereditary Prince Imperial of Korea (Hwangsason), a hereditary designation inherited from Yi Ku.