“You will have received a letter from me dated yesterday. This is the second I write to you from Berlin. I refer you to what was in the other. If it must be that Emilie accompany Apollo, I consent. But if I could see you alone, that is what I should prefer. I should be too much dazzled. I could not stand so much splendor all at once. It would overpower me. I should need the veil of Moses to temper the united radiance of your two divinities.”
In return, Voltaire compliments the king very profusely. Speaking of the book of the royal author, the Anti-Machiavel, he writes:
“It is a monument for the latest posterity; the only book worthy of a king for these fifteen hundred years.”[33]
Frederick was very desirous of visiting France, whose literature, science, and distinguished men he so greatly admired. Early Monday morning, the 15th of August, the king left Potsdam to visit his sister Wilhelmina, intending then to continue his journey incognito into France, and, if circumstances favored, as far as Paris. The king assumed the name of the Count Dufour. His next younger brother, William, eighteen years of age, accompanied him, also under an assumed name. William was now Crown Prince, to inherit the throne should Frederick leave no children. Six other gentlemen composed the party. They traveled in two coaches, with but few attendants, and avoided all unnecessary display.
Frederick spent three days with his sister at Baireuth. Wilhelmina was disappointed in his appearance. The brotherly affection she looked for was not found. He was cold, stately, disposed to banter her, and his conversation seemed “set on stilts.” Leaving Baireuth, the king continued his journey very rapidly toward Strasbourg. When they reached Kehl, on the eastern banks of the Rhine, they were informed that they could not cross the river without passports. One of the gentlemen drew up the necessary document, which the king signed and sealed with his signet-ring. The curiosity of the landlord had been excited, and he watched his guests from a closet. Seeing what was done, he said to Frederstorf, the king’s valet, “Count Dufour is the King of Prussia, sir; I saw him sign his name.” He was bribed to keep the secret.
When they reached Strasbourg they provided themselves with French dresses. The king and his brother put up at different inns, that they might be less liable to suspicion. Frederick, with several of his party, took lodgings at the Raven Hotel. He sent the landlord out to invite several army officers to sup with a foreign gentleman, Count Dufour, from Bohemia, who was an entire stranger in the place. Some of the officers very peremptorily declined the invitation, considering it an imposition. Three, however, allured by the singularity of the summons, repaired to the inn. The assumed count received them with great courtesy, apologized for the liberty he had taken, thanked them for their kindness, and assured them that, being a stranger, he was very happy to make the acquaintance of so many brave officers, whose society he valued above that of all others.
The companions of the king were well-bred men, of engaging manners, commanding intelligence, and accustomed to authority. The entertainment was superb, with an abundance of the richest wines. The conversation took a wide range, and was interesting and exciting to a high degree. The French officers were quite bewildered by the scene. The count was perfect master of the French language, was very brilliant in his sallies, and seemed perfectly familiar with all military affairs. He was treated with remarkable deference by his companions, some of whom were far his superiors in years.
The entertainment was prolonged until a late hour of the night. The delighted guests, as they retired, urged their host to attend parade with them in the morning, offering to come in person to conduct him to the ground. The count, with pleasure, accepted the invitation. In the morning he was escorted to the parade-ground. His fame spread rapidly. Friends multiplied. He was invited to sup with the officers in the evening, and accepted the invitation. Marshal Broglio, a very stately gentleman of seventy years, was military governor at Strasbourg. The count and one of his companions, the distinguished philosopher Count Algarotti, were invited to dine with the marshal. The supper given in the evening by the officers was brilliant. They then repaired to the opera. A poor little girl came to the box with a couple of lottery tickets for sale. Frederick gave her four ducats ($25), and tore up the tickets.
Strasbourg began to echo with the fame of this foreign count. But the next morning, Thursday, August 25, as Marshal Broglio was walking on the Esplanade, a soldier, who had formerly been in the regiment of the Crown Prince at Potsdam, and who knew the Crown Prince perfectly, having seen him hundreds of times, but who had deserted and entered the French service, came to the marshal, with much bowing and embarrassment, and assured him that Count Dufour was no less than the King of Prussia.
The secret was now out. The tidings flew in all directions that the King of Prussia was in Strasbourg incognito. The king, not yet aware of the detection, called upon the marshal. A crowd of officers gathered eagerly around. The marshal was much embarrassed in his desire to respect the incognito, and also to manifest the consideration due to a sovereign. No one yet ventured to address him as king, though there were many indications that his rank was beginning to be known. Frederick therefore decided to get out of the city as soon as possible. To conceal his design, he made arrangements to attend the theatre with the marshal in the evening. The marshal went to the theatre with all his officers. The building was crowded with the multitude hoping to see the king. Bonfires began to blaze in the streets, and shouts were heard of “Long live the King of Prussia.” Frederick hastily collected his companions, paid his enormous bill at the Raven, “shot off like lightning,” and was seen in Strasbourg no more.