Thus deprived of all the ordinary comforts of life, the prince, in the nineteenth year of his age, was consigned to an imprisonment of absolute solitude. For weeks and months he was left to his own agitating thoughts, with the apparent blighting of every earthly hope, awaiting whatever doom his merciless father might award to him. His jailers, not unmindful of the embarrassing fact that their captive might yet become King of Prussia, with their fate in his hands, gradually treated him with all the secret kindness which they dared to exhibit.[13] [Illustration: FREDERICK IN PRISON.] Though Wilhelmina was also a close prisoner in her apartment in the Berlin palace, and was fed upon the coarsest fare, she still had a comfortable room, her musical instruments, and the companionship of her governess, Madam Sonsfeld. It was rather a relief to the unhappy princess to be shut out from the presence of her father and from the sound of his voice. She occasionally obtained a smuggled letter from her mother, and even got one, in pencil, from her brother, full of expressions of tenderness. All the friends of Fritz were treated by the infuriate father with the most cruel severity. No mercy was shown to any one who had ever given the slightest indication of sympathy with the Crown Prince. A bookseller, who had furnished Fritz with French books, was cruelly exiled to the remote shores of the Baltic, on the extreme northern frontiers of Prussia. A French gentleman, Count Montholieu, who had loaned the Crown Prince money, would probably have perished upon the scaffold had he not escaped by flight. His effigy was nailed to the gallows. There was a young lady in Potsdam by the name of Doris Ritter. She was the daughter of highly respectable parents, and was of unblemished character. As Fritz was extremely fond of music, and she played sweetly on the harpsichord, he loaned her pieces of music, and occasionally, under the eye of her parents, accompanied her with the flute. The life of a colonel in garrison at Potsdam was so dull, that this innocent amusement was often quite a help in beguiling the weary hours. The young lady was not beautiful, and there was no evidence of the slightest improprieties, or of any approach even to flirtation. But the infuriate king, who, without the shadow of reason, could accuse his own daughter of infamy, caused this young lady, under the pretext that she had been the guilty intimate of his son, to be taken from her parents, to be delivered to the executioners, and to be publicly conveyed in a cart and whipped on the bare back through the principal streets of the town. She was then imprisoned, and doomed to beat hemp as a culprit for three years.