The death of Madame du Chatelet is another turning-point in the history of Voltaire.
The principal literary results of his early years here were the Discours en vers sur l'homme, the play of Alzire and L'Enfant prodigue (1736), and a long treatise on the Newtonian system which he and Madame du Chatelet wrote together.
Originally a procureur attached to the Chatelet at Paris, he sold his office in 1783, and became a clerk under the lieutenant-general of police.
If the English visit may be regarded as having finished 1 Gabrielle Emilie Le Tonnelier de Breteuil, marquise du Chatelet (1706-1749), was the daughter of the baron de Breteuil, and married the marquis du Chatelet-Lomont in 1725.
At first, after removing his goods from Cirey, he hired the greater part of the Chatelet town house, and then the whole.
It comprises the chatelet a (15th century), a square entrance structure strengthened by flanking turrets and machicolation, the adjoining guard-room (13th century) with the salle des officiers above it, and behind all the Tour Perrine.
He once lay in hiding for two months with the duchesse du Maine at Sceaux, where were produced the comedietta of La Prude and the tragedy of Rome sauvee, and afterwards for a time lived chiefly at Luneville; here Madame du Chatelet had established herself at the court of King Stanislaus, and carried on a liaison with Saint-Lambert, an officer in the king's guard.
The best-known accounts of Cirey life, those of Madame de Grafigny, date from the winter of 1738-39; they are somewhat spiteful but very amusing, depicting the frequent quarrels between Madame du Chatelet and Voltaire, his intense suffering under criticism, his constant dread of the surreptitious publication of the Pucelle (which nevertheless he could not keep his hands from writing or his tongue from reciting to his visitors), and so forth.