Weariness alone prevented the victors from completing the ruin of the Scots in Lancashire. Cromwell's men were too exhausted to follow up the main body of the cavalry under Hamilton himself, which had crossed the Mersey into Cheshire. "If I had 1,000 horse that could trot 30 miles," Cromwell wrote on August 20th, "I should not doubt but to give a very good account of them; but truly we are so harassed and hagled out in this business, that we are not able to do more than walk an easy pace after them." As it was Cromwell himself did not follow the Scots into Cheshire, but left Colonel Lambert to continue the pursuit, and wrote to Lord Grey, Sir Henry Cholmondeley, and Sir Edward Rhodes to intercept Hamilton. Indeed the Scotch army might now almost be left to melt away of itself. They marched to Malpas and from there to Drayton, and then to Stone and Uttoxeter, where the Parliamentarian forces fell upon their rear and captured many prisoners, including Lieutenant-General Middleton. But Hamilton himself was too ill to continue his flight any further and surrendered with most of his men. A remnant of the force under the Earl of Callander and Sir Marmaduke Langdale endeavoured to escape northwards to return to Scotland, and reached Ashbourne in Derbyshire; but here Callander's men mutinied, and Langdale, escaping with three other officers was discovered, though they had tried to pass themselves off as Parliamentarians. They were all seized and lodged in Nottingham Castle. The Duke of Hamilton was executed in March, 1649.