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
Vincenzo Peruggia making a vow for you to live long and enjoy the prize that your son is about to realize for you and for all our family." Put on trial, the court agreed, to some extent, that Peruggia committed his crime for patriotic reasons and gave him a lenient sentence. He was sent to jail for one year and 15 days, but was hailed as a great patriot in Italy and served only seven months in jail. Another theory emerged later. The theft may have been encouraged or masterminded by Eduardo de Valfierno, a con-man who had commissioned the French art