Granby's success in commanding the allied cavalry required courage, control and communication, as well as skill in bringing the horse artillery to bear. The victory at the Battle of Warburg in July 1760 over an army three times the size distinguished his generalship, and marked him as a genuine British military hero. His opponent, the duc de Broglie, was so impressed that he commissioned a portrait of Granby by Sir Joshua Reynolds. Further successes came at the Battle of Emsdorf in July 1760, the Battle of Villinghausen in July 1761 and at the Battle of Wilhelmsthal in June 1762.