Page "Zhou Dynasty" Paragraph 5

Though King Wu died just a few years after the Battle of Muye, the Duke of Zhou assisted the young and inexperienced King Cheng in consolidating power for the Ji line: he managed a war against rebellious Zhou princes in the eastern lowlands ( allied with feudal rulers and Shang remnants ); formulated the Mandate of Heaven doctrine to counter Shang claims to a divine right of rule ; founded Chengzhou as an eastern capital ; and set up the fengjian " feudal " system designed to maintain Zhou authority as it expanded its rule over a larger amount of territory.