To establish the poet at his court, Frederic named him his chamberlain, and gave him the brevet of a pension of twenty thousand francs for himself, and four thousand for his niece, who was invited to come and take up her abode with her uncle at Potzdam. Before he accepted these bounties, it was necessary to obtain permission from his own sovereign, of whom he was placeman and pensioner. Frederic himself wrote to solicit the consent of the king of France. To Voltaire's surprise, Louis showed displeasure. Monarchs are usually averse to any display of independence on the part of their subjects and servants. He accepted the poet's resignation of the place of historiographer, which Voltaire had hoped to keep, but permitted him to retain his title of gentleman in ordinary and his pension. Yet this was done in a manner that showed Voltaire that if he were forced to leave Prussia, his position in his native country would be more perilous and stormy than ever. He felt, also, deeply disappointed in finding himself obliged to give up the idea of having his niece, Madame Denis, with him in Prussia. "The life we lead at Potzdam," he writes, "which pleases me, would drive a woman to despair; so I leave her my house in Paris, my plate, and my horses, and I add to her income." Still his niece and his friends were not content at his throwing himself so entirely into the power of Frederic, and their suggestions inspired a thousand doubts as to the prudence of his choice, especially when the severity of the winter made him feel that the climate was ill suited to his feeble constitution. However, he manfully opposed himself to the objections raised against his choice, and the sufferings which the long icy winter caused him to endure. He devoted himself to authorship. His chief occupation was his "Age of Louis XIV.," of which he was justly proud. He felt that he could write with greater freedom while absent from France. "I shall here finish," he writes, "the 'Age of Louis XIV.,' which, perhaps, I had never written in Paris. The stones with which I erect this monument in honour of my country had, there, served but to crush me; a bold word had seemed a lawless licence, and the most innocent expressions had been interpreted with that charity that spreads poison through all." Again he writes: "I shall be historiographer of France in spite of my enemies, and I was never so desirous of doing well the duties of my place as since I lost it. This vast picture of so illustrious an age turns my head. If Louis XIV. be not great, at least his age is. It is an immense work: I shall revise it severely, and shall endeavour, above all, to render the truth neither odious nor dangerous."