In 1527 Jacopo Sansovino came to Venice, fleeing from the sack of Rome, and by 1529 he had been appointed as Proto (consultant architect and buildings manager) to the Procurators of St. Mark. The Procurators wished to rebuild the old buildings on the south side of the Piazza, but Sansovino persuaded them that the opportunity should be taken to enlarge the Piazza and that these buildings should be demolished and the building line moved back clear of the campanile. He also convinced them that the old hostelries and shops on the west side of the Piazzetta opposite the Doge's Palace should be replaced by a new building worthy of the site. It was decided that the library of books and manuscripts, which had been bequeathed to the city by Cardinal Bessarion but had still not found a permanent home, should be housed there and Sansovino originally intended that the facade of this building (the Libreria) should eventually be continued along the south side of the Piazza and round the south-west corner as far as the church of San Geminiano in the middle of the west side. These changes also made it necessary to rebuild the Loggetta and at the same time the government of Venice had commissioned Sansovino to rebuild the mint (the Zecca) on the west side of the Libreria. All these works were proceeding together for many years after 1537. The new Loggetta was complete by 1545 and the Zecca by 1547 (though a third storey was added by 1566), but work on the Libreria was held up by the difficulty of finding new premises for the businesses which were displaced as well as by shortage of funds and only sixteen bays (out of twenty-one) had been finished before the death of Sansovino in 1570. By that date it had not yet been possible to start on the rebuilding of the south side of the Piazza beyond the Libreria.