Mona Lisa two years, Peruggia grew impatient and was caught when he attempted to sell it to directors of the Uffizi Gallery in Florence. It was exhibited in the Uffizi Gallery for over two weeks and returned to the Louvre on 4 January 1914. Peruggia served six months in prison for the crime and was hailed for his patriotism in Italy. Before its theft, the "Mona Lisa" was not widely known outside the art world. It was not until the 1860s that some critics, a thin slice of the French intelligentsia, began to hail it as a masterwork of Renaissance painting. In
Paris in the 18th century in his career Voltaire had been welcomed to the salon of Madame Pompadour, and had been granted a government pension, which he did not touch for twelve years; the scholar and co-author of the first Encyclopedia, d'Alembert had been provided an apartment in the Louvre; and Rousseau had been feted and welcomed to the homes of the nobility. But under Louis XVI the royal attitudes changed. Voltaire very rarely visited Paris between 1760 and his death in 1784. Rousseau was allowed to return to Paris from exile only on the condition that he not publish any of his work. Nonetheless,