On arriving in London, he found his appointment to the Court of Portugal superseded by another to the Court of Berlin, with directions not to proceed on the mission until he had received the necessary instructions. While waiting for these, an engagement he had formed during a former visit to England was fulfilled, by his marriage, on the 26th of July, 1797, with Louisa Catharine Johnson, the daughter of Joshua Johnson, American consul at London; a lady highly qualified to support and to ornament the various elevated stations he was destined to fill. Mr. Adams was reluctant to accept the appointment to Berlin, as it had been made by his father, who had succeeded Washington as President of the United States. "I have submitted to take it," he immediately wrote to his mother, "notwithstanding my former declaration to you and my father, made a short time ago. I have broken a resolution I had deliberately formed, and that I still think right; but I never acted more reluctantly. The tenure by which I am for the future to hold an office of such a nature will take from me the satisfaction I have enjoyed, hitherto, in considering myself a public servant." To his father he wrote: "I cannot, and ought not, to discuss with you _the propriety_ of the measure. I have undertaken the duty, and will discharge it to the best of my ability, and will complain no further. But I most earnestly entreat that whenever there shall be deemed no further occasion for a minister at Berlin I may be recalled, and that no nomination of me to any other public office whatever may ever again proceed from the present chief magistrate." His continuance in a diplomatic career had been repeatedly urged by President Washington. In August, 1795, he wrote to John Adams, then Vice-President: "Your son must not think of retiring from the walk he is now in (minister from the United States to Holland). His prospects, if he pursues it, are fair; and I shall be much mistaken if, in as short a time as can well be expected, he is not found at the head of the diplomatic corps, let the government be administered by whomsoever the people may choose." In a letter dated 20th February, 1797, addressed to Mr. Adams, just before his entrance on the Presidency, Washington again wrote: "I have a strong hope that you will not withhold merited promotion to Mr. John Quincy Adams because he is your son. For, without intending to compliment the father or the mother, or to censure any others, I give it as my decided opinion that Mr. Adams is the most valuable public character we have abroad, and that he will prove himself to be the ablest of all our diplomatic corps. If he was now to be brought into that line, or into any other public walk, I would not, on the principles which have regulated my own conduct, disapprove the caution hinted at in the letter. But he is already entered; the public, more and more, as he is known, are appreciating his talents and