Although Wilhelmina had no voice in arranging that most momentous step in her life, her own marriage, it proved happier than might have been expected. The Prince of Baireuth came much nearer answering to the standard she had formed as to what was desirable in a husband than any of the other suitors who had been forced upon her notice. Always faithful to her trust, she learned to love her husband with a devoted and constant affection. But her life was destined to be always stormy and tearful. The duties of her new position were trying and difficult, but she bore herself with dignity and patience amidst the trifling and intriguing jealousies of the two Courts. Her own marriage was quickly followed by that of her brother, brought about in his case also without the concurrence of his own inclination. The following is his letter announcing to her his engagement:—
"Berlin, 6 March, 1732.
"My Dear Sister,—Next Monday comes my betrothal, which will be done just as yours was. The person in question is neither beautiful nor ugly, nor wanting for sense, but very ill brought up, timid, and totally behind in manners and social behaviour: that is the candid portrait of this Princess. You may judge by that, my dear sister, if I find her to my taste or not. The greatest merit she has is that she has procured me the liberty of writing to you; which is the one solace I have in your absence.
"You never can believe, my adorable sister, how concerned I am about your happiness; all my wishes centre there, and every moment of my life I form such wishes. You may see by this that I preserve still that sincere friendship which has united our hearts from our tenderest years; recognise at least, my dear sister, that you did me a sensible wrong when you suspected me of fickleness towards you, and believed false reports of my listening to talebearers—I, who love only you, and whom neither absence nor lying rumours could change in respect of you. At least, do not again believe such things on my score, and never mistrust me until you have had clear proof, or until God has forsaken me, and I have lost my wits. And, being persuaded that such miseries are not in store to overwhelm me, I here repeat how much I love you, and with what respect and sincere veneration, I am and shall be till death, my dearest sister, your most humble and faithful brother and valet,
"Frederick."
A short time afterwards in writing to her he says:—"God be praised that you are better, dearest sister, for nobody can love you more tenderly than I do. God long preserve you in perfect health! And you, keep for me always the honour of your good graces; and believe, my charming sister, that never brother in the world loved with such tenderness a sister so charming as mine; in short believe, dear sister, that without compliments, and in literal truth, I am, wholly yours."
That the brother and sister were still the first to each other is shown by their correspondence, the manner in which they always consulted each other, and kept each other informed of the incidents in each other's lives. On the morning of his marriage Frederick writes to inform his sister of the event:—
"Salzdalum, Noon, 12th June, 1733.
"My Dear Sister,—A minute since the whole ceremony was got finished, and, God be praised, it is over! I hope you will take it as a mark of my friendship that I give you the first news of it. I hope I shall have the honour to see you again soon, and to assure you, my dear sister, that I am wholly yours. I write in great haste, and do nothing that is merely formal. Adieu.
"Frederick."