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Wu Ch'om (Hangul:오첨, Hanja:呉膺), a 45th generation descendant of the famed Chinese general and strategist Wu Qi, migrated to Korea from China during the reign of Shilla's King Jijeung (500-514 AD). He is the ancestor of all 16 Korean "Oh" clans. His direct descendant, Oh Da-ryeon (Hangul:오다련, Hanja:呉多憐) was the magistrate of the province of Naju and helped Taejo of Goryeo to establish the Goryeo Dynasty and was the father of Queen Janghwa of Goryeo. Queen Janghwa gave birth to King Hyejong of Goryeo who was the second king of Goryeo.