Dan, Duke Wen of Zhou, commonly known as the Duke of Zhou, was a member of the royal family of the early Zhou dynasty who played a major role in consolidating the kingdom established by his elder brother King Wu.[1][2] He was renowned for acting as a capable and loyal regent for his young nephew King Cheng, and for successfully suppressing the Rebellion of the Three Guards and establishing firm rule of the Zhou dynasty over eastern China. He is also a Chinese culture hero, with the authorship of the I Ching and the Classic of Poetry having traditionally been attributed to him,[3] as well as the establishment of the Rites of Zhou.