Meaning any indication of the future (especially favorable) is from 1650s; earlier (1630s) in extended sense of benevolent influence of greater power, influence exerted on behalf of someone or something, originally in expression under the auspices of.
The King of Prussia Mall is located in the community of King of Prussia in Upper Merion Township, Montgomery County, Pennsylvania, 20 miles (32 km) northwest of Philadelphia.
Prussia was a historical region in Europe that bordered the southeast coast of the Baltic Sea. It was known for its powerful army. In 1871 Prussia united several German states to create the empire of Germany.