Her husband was appointed ambassador to the Sublime Porte in 1716, and she accompanied him. The letters which form the records of her journey out, of her life in Constantinople and of her return, serve to show, as the "Lady" who wrote a preface to them when they were published says she is 'malicious enough to desire,' "to how much better purpose the ladies travel than their lords." The skill and point with which she tells the most ordinary incidents of her travels, no less than fixes on the contrasts that are so striking between what she sees and what her correspondents are accustomed to, gives the letter an imperishable charm. But not a little also is due to the position of the writer. Merchants, and ordinary travellers, as she says, had told the world long before a great deal about the marvels of the Turkish Empire; but Lady Mary was a woman, a very clever woman, and an ambassador's wife. She had the entrée where few others could go, and she knew as very few others did how to describe what she had seen. The position of an European ambassador's household in Pera in the eighteenth century, was by no means entirely pleasant, and indeed it was not wholly without risks, even for an ambassador's wife. Lady Mary, however, went everywhere and saw everything, and, in the midst of a good deal of domestic discomfort, accommodated herself amazingly to the cosmopolitan and polyglot life which she came to delight in. "I live," she wrote, "in a place that very well represents the tower of Babel, in Pera they speak Turkish, Greek, Hebrew, Armenian, Arabic, Persian, Russian, Slavonian, Wallachian, German, Dutch, French, English, Italian, Hungarian, and what is worse, there are ten of these languages spoken in my own family." Children of three years old often speak five languages, she says, a statement that would be as nearly true now as it was then. This she professes to find annoying, it was really delightful, other things were not so pleasant. Constantinople in earlier times had not been a pleasant resort for ambassadors. The _Mémoires sur l'ambassade de France en Turquie_, written by M. le Comte de Saint-Priest, at the end of the eighteenth century, show how difficult and dangerous had been the position of the envoys. They are a brilliant sketch of the work of the able French ambassadors who had endeavoured from the time of Francis I. and Suleiman the Magnificent, to confirm an alliance which should secure to France a flourishing trade in the Levant, and a powerful ally against the House of Hapsburg. Their success was considerable, but it was not infrequently interfered with by their own eccentricities. Savari de Lancosme (1585) was so rash that his cousin Savari de Brèves was sent out to supersede him, and he promptly induced the Turks to imprison him in the Seven Towers.