Who is the Duke of Zhou in history?

Duke of Zhou, surnamed Ji, is the fourth son and younger brother of Ji Chang. Because of its fief in Zhou, Jue is the main, so it is called Duke of Zhou.

When Zhou Wenwang and Ji Chang were still alive, Duke Zhou was very filial, loyal and kind, which was better than other brothers. When he ascended the throne in Ji Fa, Dan often assisted Ji Fa in handling many government affairs. In Zhou Wenwang, Zhou people had begun to deal with and struggle with Shang Dynasty. At first, Ji Chang won the trust of Di Xin and Shang Zhouwang, and the King of Yin gave Ji Chang an order to bring a bow and an axe, so that he had the right to conquer. Ji Chang was ordered to do his duty for seven years, and Ji Fa acceded to the throne, with Thai Wang Gong (Jiang Shang) as the main part and Zhou Gongdan as the auxiliary part.

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Culturally, Duke Zhou put forward the moral standard of "knowing morality and being cautious about punishment" and formulated a complete etiquette standard. In addition, Duke Zhou once proposed "respecting morality and protecting people", and the system of rites and music established a set of laws and regulations. His remarks can be found in various chapters of Shangshu, such as kim hyun and Wuyi. Duke Zhou also contributed to the creation of the Book of Changes. Duke Zhou was highly respected by Confucius and regarded as a saint by Confucianism. Duke Zhou's thoughts played a fundamental role in the formation of Confucianism, which was called Duke Zhou and Confucius in the Han Dynasty.