Hwaseong Fortress or Suwon Hwaseong is a fortification surrounding the centre of Suwon, the provincial capital of Gyeonggi-do, in South Korea. It was built from 1794 to 1796 by King Jeongjo of the Joseon dynasty to house and honour the remains of his father, Prince Sado. Sado had been executed by being locked alive inside a rice chest by his own father King Yeongjo after failing to obey a command to commit suicide. Located south of Seoul and enclosing much of central Suwon, the fortress includes King Jeongjo's palace Haenggung. The fortress and enclosed palace were designated as a World Heritage site by UNESCO in 1997. It comprises among many other features the palace, a perimeter wall, four main gates, and two sluicegates over the Suwoncheon, Suwon's main stream, which flows through the centre of the fortress. Background King Jeongjo apparently built Hwaseong Fortress to prepare for a move of the capital from Seoul to Suwon. Suwon was purported to be strategically positioned to connect Seoul with the West Sea (Yellow Sea) and China. The king wanted to leave the factional strife of the court to carry out reforms and believed that Suwon had the potential to grow into a new and prosperous capital. To encourage growth, he ordered people to move to Suwon at considerable expense and exempted them from taxes for ten years. King Jeongjo also ordered public works, such as the building of educational facilities to better facilitate the city as a capital. Suwon Hwaseong Fortress was restored based on the Hwaseong Seongyeok Uigwe, a design drawing from 200 years ago. The Hwaseong Seongyeok Uigwe is a blueprint showing the appearance of Suwon Hwaseong Fortress, the tools used to build it, and the location of Suwon Hwaseong Fortress. Because Suwon Hwaseong Fortress was restored based on perfectly preserved blueprints, it was exceptionally successful in being registered as a World Cultural Heritage despite being a modern restored building. At the time of the construction of Hwaseong, he spent a lot of money, so he needed to tell his descendants how it was made, so he made the Hwaseong Sanctuary Uigwe, which eventually became a great source of strength for his descendants. Construction Hwaseong Fortress was built over a two and a half-year period, from 1794 to 1796 according to the designs of the architect Jeong Yakyong, who would later become a renowned leader of the Silhak movement. Silhak,