Prince Yeollyeong (Korean: 연령군; Hanja: 延齡君; June 13, 1699 – October 2, 1719) was the sixth son of King Sukjong of Joseon.
His personal name was Yi Hwon (이훤; 李昍) while his childhood name was Insu (인수; 仁壽),[1] and his courtesy name was Munsuk (문숙; 文叔).
[2][3] Prince Yeollyeong's parents were King Sukjong and one of his consorts, Royal Noble Consort Myeong of the Miryang Park clan (Korean: 명빈 박씨; Hanja: 䄙嬪 朴氏); when Yi Hwon was five (East Asian age reckoning), Lady Park passed away and he acquired the official title in the same year.
[2] In 1707, Lady Kim, daughter of an official Kim Dong-pil (Korean: 김동필; Hanja: 金東弼), was chosen to be the spouse of Prince Yeollyeong and they married in the same year.
Prince Yeollyeong passed away in 1719 and his posthumous name was "Hyohyeon" (Korean: 효헌; Hanja: 孝憲).