The History of Henry Esmond by William Makepeace Thackeray

The gentleman whom Beatrix had selected was, to be sure, twenty years older than the Colonel, with whom she quarrelled for being too old; but this one was but a nameless adventurer, and the other the greatest duke in Scotland, with pretensions even to a still higher title. My Lord Duke of Hamilton had, indeed, every merit belonging to a gentleman, and he had had the time to mature his accomplishments fully, being upwards of fifty years old when Madam Beatrix selected him for a bridegroom. Duke Hamilton, then Earl of Arran, had been educated at the famous Scottish university of Glasgow, and, coming to London, became a great favorite of Charles the Second, who made him a lord of his bedchamber, and afterwards appointed him ambassador to the French king, under whom the Earl served two campaigns as his Majesty's aide-de-camp; and he was absent on this service when King Charles died.

King James continued my lord's promotion -- made him Master of the Wardrobe and Colonel of the Royal Regiment of Horse; and his lordship adhered firmly to King James, being of the small company that never quitted that unfortunate monarch till his departure out of England; and then it was, in 1688 namely, that he made the friendship with Colonel Francis Esmond, that had always been, more or less, maintained in the two families.