덕종은 세조의 원자로 태어났으나 20세에 돌아가시고(1457) 뒤에 그의 아들 성종이 즉위 하면서 덕종으로 추존되었다.
Crown Prince Uigyeong was the eldest son of King Sejo, but died at the age of 20 (1457) and he was posthumously honored as Deokjong when his son Seongjong ascended the throne.