And so, on or about New-year's day, 1744, while the Commandant of Stettin and his airy Spouse are doing Christmas at their old Schloss of Zerbst, there suddenly come Estafettes; Expresses from Petersburg, heralded by Express from Friedrich:--with the astonishing proposal, "Czarina wishing the honor of a visit from Madam and Daughter; no doubt, with such and such intentions in the rear." [Friedrich's Letters to Madam of Zerbst (date of the first of them, 30th December, 1743), in _OEuvres,_ xxv. 579-589.] Madam, nor Daughter, is nothing loath;--the old Commandant grumbles in his beard, not positively forbidding: and in this manner, after a Letter or two in imperfect grammar, Madam and Daughter appear in Carnival society at Berlin, charming objects both; but do not stay long; in fact, stay only till their moneys and arrangements are furnished them. Upon which, in all silence, they make for Petersburg, for Moscow; travel rapidly, arrive successfully, in spite of the grim season. ["At Moscow, 7th (18th) February, 1744."] Conversion to the Greek Religion, change of name from Sophie-Frederike to Catherine-Alexiewna ("Let it be Catherine," said Elizabeth, "my dear mother's name!"--little brown Czarina's, whom we have seen):--all this was completed by the 12th of July following. And, in fine, next year (September 1st, 1745), Peter Federowitz and this same Catherine-Alexiewna, second-cousins by blood, were vouchsafed the Nuptial Benediction, and, with invocation of the Russian Heaven and Russian Earth, were declared to be one flesh, [Ranke, iii. 129; _Memoires de Catherine II._ (Catherine's own very curious bit of Autobiography;--published by Mr. Herzen, London, 1859), pp. 7-46.]--though at last they turned out to be TWO FLESHES, as my reader well knows! Some eighteen or nineteen years hence, we may look in upon them again, if there be a moment to spare. This is Marriage first; a purely Russian one; built together and launched on its course, so to say, by Friedrich at Berlin, who had his own interest in it. Marriage Second, done at Berlin in the same months, was of still more interesting sort to Friedrich and us: that of Princess Ulrique to the above-named Adolf Friedrich, future King of Sweden. Marriage which went on preparing itself by the side of the other; and was of twin importance with it in regard to the Russian Question. The Swedish Marriage was not heard of, except in important whispers, during the Carnival time; but a Swedish Minister had already come to Berlin on it, and was busy first in a silent and examining, then in a speaking and proposing way. It seems, the Czarina herself had suggested the thing, as a counter-politeness to Friedrich; so content with him at this time. A thing welcome to Friedrich. And, in due course ("June, 1744"), there comes express Swedish Embassy, some Rodenskjold or Tessin, with a very shining train of Swedes, "To demand Princess Ulrique in marriage for our Future King."