The library nearly came to an end in January and February 1652 with the outbreak of the Fronde, an uprising by several powerful nobles against the authority of Mazarin. Mazarin and the young King were forced to flee Paris. The palace was looted and thousands of books were burned, lost or sold. Fortunately Naudé succeeded in hiding the most valuable volumes in his apartment in the Abbey of Saint-Genevieve. When Mazarin was finally able to return to Paris and to power in 1653, Naudé was able to get back many of the books which had been sold or stolen.
