History of Gyeongbokgung Palace In 1395, three years after the founding of the Joseon Dynasty by Yi Seong-gye, the new main palace, Gyeongbokgung, was completed and the capital of the new dynasty was moved from Gaeseong to Seoul (then known as Hanyang). The palace was destroyed by fire during the Japanese invasions of 1592 and was not reconstructed until 1868, the fifth year of King Gojong. Duri..