Following the War of Polish Succession, it seemed like Europe might enjoy some peace for a time. However, in 1740, the ruler's of Prussia, Russia, and Austria all die in quick succession. Charles VI's pragmatic sanction would be tested before his daughter, Maria Theresa, could properly rule. Bavaria would dispute the succession, and being backed by France, it starts a crisis in Europe. This becomes coupled with Frederick II's invasion of Silesia, Spain pressing demands for Parma and Piacenza, and the War of Jenkins Ear between Spain and Britain. All of these conflicts and disputes combine together into what becomes the War of Austrian Succession. Afterwards, the stage will be set for the Diplomatic revolution and the final moves before the eruption of The 7 Years War.