quality:correction
Jeongjo (Korean: 정조; Hanja: 正祖; 28 October 1752 – 18 August 1800), personal name Yi San (이산; 李祘), sometimes called Jeongjo the Great (정조대왕; 正祖大王), was the 22nd monarch of the Joseon dynasty of Korea. He was the second son of Crown Prince Sado and Lady Hyegyeong, and succeeded his grandfather, King Yeongjo, in 1776. Today, Jeongjo is remembered for his various efforts to reform and improve the nation.