Ernest Marsh Lloyd, Dictionary of National Biography… (1900)
“ By this time the duke had left the army for England. He had not shown much talent or vigour in the campaign. Though a good soldier, he had never had the intuition of a general, nor perhaps the calmness. George II was told that ‘his head turned’ both at Hastenbeck and at Laeffelt. Always stout, he had now become corpulent and had lost his activity. He was in bad health, and the old wound in his leg gave him trouble. But it must also be remembered that he was overmatched in numbers, his troops had no cohesion, and his hands were tied by his instructions. ”
