The future Grand Prince Neungchang was born on 16 July 1599 (32nd year reign of Seonjo of Joseon) in Saemun-ri, Seongseo, Hanseong-bu, Joseon as the youngest son of Prince Jeongwon (정원군; 定遠君) and Princess Consort Yeonju of the Neungseong Gu clan (연주군부인; 連珠郡夫人), the daughter of Gu Sa-Maeng (구사맹).
[citation needed] However, on 22 August in the same year, Gwanghae then captured Neungchang and after speaking in there Injeongmun (인정문; 仁政門), he imprisoned and exiled him to Gyodong-do, Ganghwa.
[3] Later, on 17 November 1615 (8th year reign of Gwanghaegun of Joseon), the Prince committed suicide after writing a letter to his parents and passed it on to his brother-in-law at the government office.
Meanwhile, in March 1623, after his oldest brother, Grand Prince Neungyang (능양대군) rebelled and succeeded Gwanghae's throne, Neungchang's letter was delivered to him.
[8] The Prince was firstly honoured as Gadeokdaebu (가덕대부; 贈嘉德大夫),[9] then on 15 October 1629 (Injo's 7th year reign), he was promoted to Hyeollokdaebu (현록대부; 贈顯祿大夫).
[citation needed] He was firstly buried in Gunjang-ri, Geumchon-myeon, Yangju-gun, Gyeonggi Province (later became the parts of Geumgok-ri (Geumgok-dong, Namyangju), Migeum-myeon).
Then, on 29 October 1629 (6th year reign of Injo of Joseon), his tomb was relocated in Nanji-won, Geuncheohyeok-dong, Namhansanseong Fortress, Godae-myeon, Gwangju-gun, Gyeonggi Province.