 King George II of Great Britain acted as guarantor.With his territorial gain, Frederick enlarged the Prussian territory by one third, achieving the status of a European great power and initiating the hundred-year Austria–Prussia rivalry.However, Prussia's former ally King Louis XV of France was upset by this peace agreement that gave the united Austrian, British and Hanoverian forces a free hand to oust the French troops at the 1743 Battle of Dettingen - an alienation that ultimately led to the Diplomatic Revolution of 1756.