Designated as a historic site, Gyeonghuigung Palace is a representative secondary palace from the late Joseon Dynasty. Construction began in 1617 (9th year of King Gwanghaegun's reign) and was completed in 1623 (15th year of King Gwanghaegun's reign). Gyeonghuigung's original name was Gyeongdeokgung Palace, but it was changed to Gyeonghuigung in 1760 (36th year of King Yeongjo's reign) because its pronunciation was the same as Gyeongdeok, the posthumous title of King Wonjong. Gyeonghuigung was also called Seogwol (Western Palace) because it was located west of the capital city, contrasting with Changdeokgung and Changgyeonggung Palaces, which were collectively called Donggwol (Eastern Palace). After Gyeongbokgung Palace burned down during the Japanese invasions of Korea and before its reconstruction by Heungseon Daewongun, Donggwol (Changdeokgung and Changgyeonggung) became the main palaces, and Seogwol (Gyeonghuigung) was used as a secondary palace. From King Injo to King Cheoljong, ten kings used Gyeonghuigung as a secondary palace, with King Yeongjo spending half of his reign here. Gyeonghuigung had over 100 large and small buildings, including Sungjeongjeon Hall (the main hall), Jajeongjeon Hall (the council hall), and Yungbokjeon and Hoesangjeon Halls (the sleeping quarters). The 『Seogwoldoan』 (Painting of the Western Palace), presumed to have been created around the 1820s, gives an idea of its scale and composition. However, a significant number of Gyeonghuigung's buildings were moved during the reconstruction of Gyeongbokgung Palace, and Gyeonghuigung faced severe hardship, especially when Imperial Japan annexed the Korean Empire. In 1910, Gyeongseong Middle School, a school for Japanese people, was established, leading to the destruction of most important remaining halls, such as Sungjeongjeon, and its area was reduced by half. As a result, Gyeonghuigung lost its palace appearance, but through continuous excavation and research, the Sungjeongjeon area and several halls have been restored to their current state.