Fritz was placed in a strongly barred room like a dungeon, with no furniture in it, and lighted by a single slit in the wall so high that the boy could not look out of it. The coarsest brown clothes were given him to wear. He was allowed only one or two books. His food was bought at a near-by butcher-shop, and was cut for him, for he was not allowed a knife. The door of his prison was opened three times a day for ventilation, and he was provided with a single tallow candle which had to be put out by seven o'clock in the evening. This was the way the Crown Prince of Prussia lived when he was nineteen years old, and if the father did not actually succeed in breaking all the boy's spirit, he was at least changing this lovable, gentle-natured youth into a stern and gloomy young man.
Eventually the boy was released from his prison, but as long as his father lived he was treated with all the harshness the King's mind could devise. His sister Wilhelmina was kept away from him, and finally married to a man for whom she cared little. Fritz was cut off from all interests save that of the army, but gradually he began to acquire something of his father's interest in creating a splendid fighting machine.
In time he became King of Prussia himself, free at last to do as he would. He sought out men of genius, musicians, poets, and thinkers. He offered Voltaire, the great Frenchman, a home with him, and his happiest hours were spent in his company, or listening to music, or playing the flute he had loved as a boy. But that was only one side of him, and the side which was least seen. On the world's side he was the grasping ruler, the great general who forced war on all his neighbors, and who came to be known as the conqueror of Europe.
The boy Fritz of Prussia might have become one of Europe's greatest sovereigns, for he was naturally endowed with a love of all the finer things of life. Instead he became a despot who plunged Europe for years into the horrors of useless war. For this misfortune his father was responsible. The loving mother and sister could not counterbalance the terrible severity of the cruel King. Gradually Fritz changed from the sunny lad who had played in the gardens of Potsdam with Wilhelmina to a severe and arbitrary monarch.
His father had taught him that a country's greatness depended on its soldiers, and so Fritz made Prussia an army and compelled the world to admit the might of his troops. To Europe he was the ambitious tyrant, Frederick the Great. It was only to Wilhelmina and a few friends that he showed a little of that softer nature which had been his as the boy of Potsdam.
At the Charlottenburg Palace hangs the famous portrait of him playing upon the drum. It was a long step from that boy to the man Frederick the Great.