In this letter, Frederick the Great talks about how his nephew had the pleasure of listening to Voltaire. Frederick mentions that he is envious of his nephew. He also discusses Voltaire's idea of establishing a "colony of philosophers" in Clèves, and says that he does not oppose the idea. Towards the end of the letter, he compliments Voltaire on his genius, a theme that is common in many of Frederick's letters. The letter is signed with a large and elegant letter "F".