Mantua had now fallen. The Austrians were driven from Italy. The Pope, with the humility of a child, had implored the clemency of the conqueror. Still Austria refused to make peace with republican France, and with indomitable perseverance gathered her resources for another conflict. Napoleon resolved to march directly upon Vienna. His object was peace, not conquest. In no other possible way could peace be attained. It was a bold enterprise. Leaving the whole breadth of Italy between his armies and France, he prepared to cross the rugged summits of the Carnic Alps, and to plunge, with an army of but fifty thousand men, into the very heart of one of the most proud and powerful empires upon the globe, numbering twenty millions of inhabitants. Napoleon wished to make an ally of Venice. To her government he said, "Your whole territory is imbued with revolutionary principles. One single word from me will excite a blaze of insurrection through all your provinces. Ally yourself with France, make a few modifications in your government such as are indispensable for the welfare of the people, and we will pacify public opinion and will sustain your authority." Advice more prudent and humane could not have been given. The haughty aristocracy of Venice refused the alliance, raised an army of sixty thousand men, ready at any moment to fall upon Napoleon's rear, and demanded neutrality. "Be neutral, then," said Napoleon, "but remember, if you violate your neutrality, if you harass my troops, if you cut off my supplies, I will take ample vengeance. I march upon Vienna. Conduct which could be forgiven were I in Italy, will be unpardonable when I am in Austria. The hour that witnesses the treachery of Venice, shall terminate her independence." Mantua was the birth-place of Virgil. During centuries of wealth and luxurious ease neither Italy nor Austria had found time to rear any monument in honor of the illustrious Mantuan bard. But hardly had the cannon of Napoleon ceased to resound around the beleaguered city, and the smoke of the conflict had hardly passed away, ere the young conqueror, ever more interested in the refinements of peace than in the desolations of war, in the midst of the din of arms, and contending against the intrigues of hostile nations, reared a mausoleum and arranged a gorgeous festival in honor of the immortal poet. Thus he endeavored to shed renown upon intellectual greatness, and to rouse the degenerate Italians to appreciate and to emulate the glory of their fathers. From these congenial pursuits of peace he again turned, with undiminished energy, to pursue the unrelenting assailants of his country.