Evening in the Palace of Reason. James Gaines

prince seemed to have brought some illness back from Dresden, speculatively identified as venereal disease. Whatever it was, it laid him low, and was no doubt made worse by the constant battles with his father.

      He had revived by the time Augustus paid a visit to Potsdam a few months later, and along with his many mistresses (including Frederick’s favorite), he brought his Kapelle, for which he had recruited the best musicians in Europe. One of them was Johann Joachim Quantz, a flautist of formidable reputation with whom Frederick had played in Dresden. On this trip he agreed to become Frederick’s teacher on the instrument, which was no small commitment, since the lessons and expenses were to be paid by the queen and kept secret from the king.

      This little plot had the predictable outcome as well. The king came unexpectedly to Frederick’s apartment in the middle of one of his musical evenings, where Frederick was decked out in the red-and-gold robe he wore when he played duets with Wilhelmina. His hair was curled and puffed, and everything was just so, very French. There was a mad scramble when the lookout spotted the king coming. Frederick tore off the robe and stuffed it in a corner, the others, including Quantz, grabbed their instruments and found a firewood closet to hide in, but Frederick’s hair gave the game away. Very quickly the king sized up what was happening and began casting around the room for proof and co-conspirators. Where are they? he wanted to know. Hardened in his rebellion and protecting what was closest to him, Frederick said nothing. The king grew angrier, too angry, apparently, to think of looking in the closet. Finally he found and confiscated a few French books. Otherwise all he found was the red-and-gold robe. He stuffed it into the fire.

      Sometime after that the king took Frederick with him again (for reasons unknown and unfathomable) to see King Augustus, who was holding military maneuvers in Mühlberg as the excuse for a great raucous party. On the last day, Augustus gave a dinner for all thirty thousand of his soldiers at two long—apparently very long—lines of tables, at each end of which was the head of an ox, with the skin of oxen covering the roasted quarters on the tables. Between the two lines of tables rode the kings of Poland and Prussia and their two crown princes, receiving the hosannas of the crowd. Frederick, however, could not have been regarded with unmixed awe. A day or two before he had been forced to stand at parade with his hair and clothes badly askew. For one reason or another, the king had beat him hard that day, throwing him to the ground, kicking him, and dragging him around by the hair, in full view of the crowd. When he had finished with his son, Frederick William spat at him: “Had I been so treated by my father I would have blown my brains out, but this man has no honor.”

      Not long after Frederick returned to Berlin, Rothenburg informed Paris: “I have reason to believe that he is thinking of making his escape.”