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The next day as the princess was eating with her father and his court, there was a knock at the door. When the Kings daughter opened the door she saw the frog and she quickly shut the door in his face. The King noticed that she was feeling uneasy and inquired as to what she appeared to be so afraid of. She promptly explained the story of the frog and her ball to her father and how she had promised that the frog would be her companion. She said she never thought the frog could leave the water and follow her, but there the frog was. As the court heard the frogs cries, the King said to his daughter that which thou hast promised thou must perform. The King made sure that she helped the frog up so that he could eat off of her plate and later he ensured that he brought the frog to her room to sleep. She told the frog to sleep in the corner, but the frog told her that she must help him into her bed or else he would tell her father. In a great rage she picked up the frog and threw him at the wall and as the frog fell he transformed into a prince with beautiful kind eyes. She told him that a witch had cursed him and no one but she could have set him free. With the Kings consent, the Frog Prince and the Princess became bride and groom. .
There are various aspects of early-modern European, and perhaps more specifically German, culture evident in the story of the Frog Prince. Going with the western tradition of chivalry, a moral system that was in part a combination of warrior ethos, Christian virtue, and courtly manners, there is a strong emphasis put on the importance of ones word in the story. The princess promises the frog that he may be her companion and subsequently tries to renege on that agreement. However the King, her father, upon hearing the circumstances surrounding her agreement with the frog, unsympathetically insists that she make good on her word. That which she had promised she must perform.