正祖 Traditional form: 正祖 Pinyin (reading): Zhèngzǔ Definitions: Jeonjo (1752-1800), 22nd king of Korean Joseon dynasty Characters: 正 - straight, right, proper, correct, just, true 祖 - ancestor, forefather; grandfather; surname Traditional characters: 正 - straight, right, proper, correct, just, true 祖 - ancestor, forefather; grandfather; surname