[Footnote 2: NICHOLS, in the _Literary Anecdotes of the XVIIIth Century_, Vol. II. p. 19, says, "he was aid-de-camp;" but as that was the title of a _military_ rank, rather than of an attendant on a _diplomatic_ ambassador, I have substituted another term, which however may embrace it, if it be really proper.] [Footnote 3: Dr. Berkeley, in a letter to Thomas Prior, Esq., dated Turin, January 6, 1714, n.s. says that he travelled from Lyons "in company with Col. Du Hamel and Mr. Oglethorpe, Adjutant General of the Queen's forces; who were sent with a letter from my Lord to the King's mother, at Turin." _Works of GEORGE BERKELEY, D.D., with an Account of his Life_. Dublin. 1704. 2 vols. 4to. Vol. I--p. xxx] [Footnote 4: Appendix III.] In 1714 he was Captain Lieutenant in the first troop of the Queen's guards. By his fine figure, his soldierly deportment and personal bravery, he attracted the notice of the Duke of Marlborough; whose confidence and patronage he seems long to have enjoyed, and by whom, and through the influence of the Duke of Argyle, he was so recommended to Prince Eugene, that he received him into his service, first as his secretary, and afterwards aid-de-camp. Thus near the person of this celebrated general, full of ardor, and animated with heroic courage, an opportunity was offered him in the warlike expedition against the Turks in which the Prince was engaged, to gather those laurels in what the world calls "the field of glory," to which he aspired; and, in several successive campaigns, he exhibited applauded proofs of chivalric gallantry and personal bravery. By his attentive observation of the discipline, manner of battle array, onset of the forces, and the instruction given him in military tactics, he acquired that knowledge of the art of war, for which he afterwards became so distinguished. At the battle of Peterwaradin, one of the strongest frontier places that Austria had against the Turks, Oglethorpe, though present, was not perhaps actively engaged. It was fought on the 5th of August, 1716. The army of the Turks consisted of 150,000 men, of which 40,000 were Janisaries, and 30,000 Saphis, or troopers, the rest were Tartars, Walachians, and the troops of Asia and Egypt. The army of the Imperialists, under his Serene Highness, Prince Eugene, consisted of but little more than half that number. The onset began at seven in the morning, and by twelve Eugene was writing to the Emperor an account of the victory in the tent of the Grand Vizier[1]. [Footnote 1: _Military History of Prince Eugene, of Savoy_, (a superb work in two folio volumes, with elegant plates; compiled by CAMPBELL.) Lond. 1737. Vol. II. p. 215. From this, and from "_The Life and Military Actions of Eugene_," Lond. 1737, 12mo, the account of the battles is taken.]