Ch'oe U

'''Ch'oe U (; 1166 – 10 December 1249), also known as Ch'oe I''' (), was a military ruler and official during the later Goryeo period, serving in various positions such as Assistant Executive in Political Affairs, the minister of personnel and war, and Censorate superintendent. Ch'oe U's posthumous title was Kwangnyŏl (匡烈). His exact birth year is unknown, but he died in 1249 . His ancestral seat was Ubong, now known as Gimcheon in Hwanghae Province. Ch'oe U was the son of Ch'oe Ch'ung-hŏn. After Ch'oe Ch'ung-hŏn died in 1219, Ch'oe U ruled the Ch'oe military regime until 1249, becoming the second ruler of the Ch'oe family's military government. His first name was Ch'oe U, but he later changed it to Ch'oe I. During his rule, Goryeo faced many hardships, including the Mongol invasion of Korea, which led to the relocation of the capital from Gaegyeong to Ganghwa Island. Provided by Wikipedia