The secret history of the court of Berlin; or, The character of the present king of Prussia, his ministers, mistresses, generals, courtiers, favourites, and the royal family of Prussia : with numerous anecdotes of the potentates of Europe, especially of the late Frederic II, and an interesting picture of the state of politics, particularly in Prussia, Russia, Germany, and Holland; in a series of letters, translated from the French; a posthumous work; to which is added, a memorial, presented to the present king of Prussia, on the day of his accession to the throne