Date of the Letter is two months after that apparition of the Duchess of Wurtemberg at Ferney. Of "Crillon," an ingenious enough young Soldier, rushing ardently about the world in his holiday time, we have nothing to say, except that he is Son of that Rossbach Crillon, who always fancies to himself that once he perhaps spared Friedrich's life (by a glass of wine judiciously given) long since, while the Bridge of Weissenfels was on fire, and Rossbach close ahead. [Supra, x. 6.] Colonel "Guibert" is another Soldier, still young, but of much superior type; greatly an admirer of Friedrich, and subsequently a Writer upon him. [Of Guibert's visit to Friedrich (June, 1773), see Preuss, iv. 214; Rodenbeck, iii. 80.] In regard to the "Landgravine of Darmstadt," notice these points. First, that her eldest Daughter is Wife, second Wife, to the dissolute Crown-Prince of Prussia; and then, that she has Three other Daughters,--one of whom has just been disposed of in an important way; wedded to the Czarowitsh Paul of Russia, namely. By Friedrich's means and management, as Friedrich informs us. [_OEuvres de Frederic,_ (MEMOIRES DE 1763 JUSQU'A 1775), vi. 57.] The Czarina, he says, had sent out a confidential Gentleman, one Asseburg, who was Prussian by birth, to seek a fit Wife for her Son: Friedrich, hearing of this, suggested to Asseburg, "The Landgravine of Darmstadt, the most distinguished and accomplished of German Princesses, has three marriageable Daughters; her eldest, married to our Crown-Prince, will be Queen of Prussia in time coming;--suppose now, one of the others were to be Czarina of Russia withal? Think, might it not be useful both to your native Country and to your adopted?" Asseburg took the hint; reported at Petersburg, That of all marriageable Princesses in Germany, the Three of Darmstadt, one or the other of them, would, in his humble opinion, be the eligiblest. "Could not we persuade you to come to Petersburg, Madam Landgravine?" wrote the Czarina thereupon: "Do us the honor of a visit, your three Princesses and you!" The Landgravine and Daughters, with decent celerity, got under way; [Passed through Berlin 16th-19th May, 1773: Rodenbeck, iii. 78.] Czarowitsh Paul took interesting survey, on their arrival; and about two months ago wedded the middle one of the three:--and here is the victorious Landgravine bringing home the other two. Czarowitsh's fair one did not live long, nor behave well: died of her first child; and Czarowitsh, in 1776, had to apply to us again for a Wife, whom this time we fitted better. Happily, the poor victorious Landgravine was gone before anything of this; she died suddenly five months hence; [30th March, 1774.] nothing doubting of her Russian Adventure. She was an admired Princess of her time, DIE GROSSE LANDGRAFIN, as Goethe somewhere calls her; much in Friedrich's esteem,--FEMINA SEXU, INGENIO VIR, as the Monument he raised to her at Darmstadt still bears. [_OEuvres de Frederic,_ xx. 183 n. His