Duke of Zhou
Few records survive from this early period and accounts from the Western Zhou period cover little beyond a list of kings with uncertain dates. King Wu died two or three years after the conquest. Because his son, King Cheng of Zhou was young, his brother, the Duke of Zhou assisted the young and inexperienced king as regent. Wu's other brothers (Shu Du of Cai, Guan Shu, and Huo Shu), concerned about the Duke of Zhou's growing power, formed an alliance with Wu Geng and other regional rulers and Shang remnants in the rebellion of the Three Guards. The Duke of Zhou stamped out this rebellion and conquered more territory to bring other people under Zhou rule.