 The Duke of Zhou even created an entire ceremonial city along strict cosmological principals to house the Shang aristocracy and the nine tripods representing Huaxia sovereignty; the Shang were then charged with maintaining the "Rites of Zhou".Likewise, the Shang's lesser houses, the "shi" knightly class, developed directly into the learned Confucian gentry and scholars who advised the Zhou rulers on courtly etiquette and ceremony.The Confucian classics carried on and ordered the earlier traditions, including the worship of Shangdi.