A guide for courage and human kindness and against obeying laws without thinking. Fehrbellin, 1675: Prince Friedrich von Homburg has a dream in which he is the victor in an imminent battle and is laughed at by everybody. Before the real battle begins the order goes out that nobody should start fighting until the electoral prince Kurfürsten gives the order. Homburg, without permission, launches an attack. He is arrested for insubordination and sentenced to death. The electoral prince's niece Natalie, who is in love with the prince, begs her uncle for mercy. He finally agrees to pardon Homburg, if the condemned man finds the judge's sentence unjust … Hans Werner Henze and Ingeborg Bachmann, who met in 1952 at a Gruppe 47 meeting and worked together for many years, developed their own take on Kleist's play (first performed in 1821), shifting the focus from the military to the humane. The music – written for a large chamber orchestra – places two spheres opposite each other: the singable and traditional bound up with a world of dreams, which dances curiously out of focus, and through constructed, twelve tone and serial music.
Action takes place at Fehrbellin and in Berlin, 1675. The Prince of Homburg, a young officer of the Great Elector (Frederick William I, Elector of Brandenburg), is exhausted after a long campaign. Walking in his sleep, he puts on a laurel wreath. Several noblemen notice this, and the Great Elector plays a trick on the Prince, which leads him to declare his love for the Elector's niece, Natalie. He is able to take one of her gloves. After waking from his dream the Prince is puzzled by the glove in his hand. When at the next council of war the plans for the next battle are being discussed, and duties are being handed out, the Prince is thrown into confusion by the appearance of Princess Natalie, who reveals herself as the owner of the glove, and he is distracted to the extent that he fails to take on board his orders, which are not to engage the enemy without a direct order to do so. Contrary to his instructions he attacks the enemy at the Battle of Fehrbellin – and wins.
The Elector however is concerned above all with discipline. Regardless of the victory, he has the Prince arrested for disobeying an order and tried at a court martial, where the Prince is condemned to death. He fails initially to grasp the seriousness of the situation, and starts to be truly concerned only when he hears that the Elector has signed his death warrant. The reality of his situation only hits home when he is shown the grave that has been dug for him. In the famous and controversial "fear of death scene" (Todesfurchtszene) the Prince begs for his life, prepared to give up all that is dear to him in return. When the Elector hears of the Prince's reaction, he too is confused, possibly astonished, but claims to have the greatest respect for the Prince's feeling. Instead of simply pardoning him, however, he sets a condition: if the Prince can genuinely call his condemnation unjust, he will be pardoned. The question raises the Prince to a state of enlightenment: he conquers his fear of death and is prepared to "glorify" the sentence by a suicide. It remains debatable whether he really considers his sentence justified. Nor does it ever come to light to what extent the Elector may have planned all this to teach him a lesson.
Meanwhile, Natalie, without a legitimate order, has recalled Kottwitz's regiment to obtain support for Homburg's pardon. In the face of the general pressure now put on him, the Elector now listens to his officers. Kottwitz is of the opinion that what counts on the field of battle is victory, and that there is nothing with which to reproach the Prince. Hohenzollern goes further and attributes the guilt to the Elector, as he caused the Prince's confusion and consequent insubordination by the trick he played on him, and therefore bears the responsibility himself. Finally the Elector asks the officers if they are happy to continue to trust themselves to the Prince's leadership – to which all say yes.
The Prince learns nothing of his pardon, but is led blindfolded into the open air, in the belief that he is about to be executed. But there is no bullet: instead, the niece of the Elector crowns him with a laurel wreath. To his question whether this is a dream, Kottwitz replies, "A dream, what else" ("Ein Traum, was sonst"). The Prince faints.