He delivered Italy from its subjugation to France, but is most famous as a patron of the arts.  
He was elected by the shortest-lasting conclave of cardinals in papal history.  The start of his pontificate saw the conquering of Bologna, and he reluctantly joined the League of Cambrai to bring Venice under his reign.  The nephew of Pope Sixtus IV, he took the throne upon the death of Pius III, who reigned for only twenty-six days.  He delivered Italy from its subjugation to France, but is most famous as a patron of the arts.  Born Giuliano Della Rovere and ruling from 1503-13, FTP, identify this pope who commissioned Michelangelo to paint the Sistine Chapel.
He was elected by the shortest-lasting conclave of cardinals in papal history.  
Pope Julius II (accept early Giuliano Della Rovere)