After the capitulation of Grand Cairo in June 1801, Lieut.-General Hutchinson (afterwards the Earl of Donoughmore) in his public despatches, expressed his obligations to Major-General Cradock and Brigadier-General Doyle, and recommended them as “officers highly deserving His Majesty’s favour.” Upon the surrender of Cairo, the country fever seized many of the troops, and Brigadier-General Doyle, with several others, was sent ill to Rosetta, where, before his recovery, he heard a rumour of an intended attack upon the French at Alexandria. Urged by this intelligence, he left his sick bed, mounted his horse, and rode forty miles through the desert, under the intense heat of an Egyptian sun, and arrived the night before the attack. In that successful enterprise he commanded, and had the good fortune to defeat the attempts subsequently made by General Menou upon a part of his position. Lieut.-General Hutchinson, on the following day, thanked him publicly in the field in the most animated manner; but in writing his official despatch, not only omitted to forward the Brigadier-General’s report of the action of the Green Hills, near Alexandria, on the 17th of August 1801, but unfortunately stated his brigade to have been commanded by another. This omission was afterwards fully rectified by the Lieut.-General, and the matter was adverted to by Lord Hobart in the House of Commons, who particularly alluded to the conduct of Brigadier-General Doyle, when moving the thanks of Parliament to the army and navy employed in Egypt. While at Naples, after the close of the Egyptian campaign, whither Brigadier-General Doyle had proceeded for the recovery of his health, he was requested by the British ambassador to become the bearer of important despatches to the Government. This proved a service of great danger, as the country through which he passed was infested with banditti, who robbed and assassinated all who fell into their hands. His conduct on this occasion was gratefully acknowledged by His Majesty’s ministers. Upon his arrival in England, he was promoted to the rank of Major-General on the 29th of April 1802, and was placed on the staff at Guernsey, and was soon afterwards appointed Lieut.-Governor of that island, where his services during the threatened invasion of England by Napoleon were highly appreciated. Shortly afterwards the island of Alderney was added to his command. In October 1805, he was created a Baronet of the United Kingdom, and received His Majesty’s royal license to wear the Order of the Crescent conferred by the Grand Seignior, and to bear supporters to his arms, with an additional crest. On the 25th of April 1808, he was promoted to the rank of Lieut.-General.