[1] It is fair to call attention to the strong expressions used by Machiavelli in the _Discorsi_, lib. i. cap. 18 and cap. 26, on the infamies and inhumanities to which the aspirant after tyranny is condemned.
What Machiavelli says about mixed principalities is pointed by a searching critique of the Italian policy of Louis XII. The French king had well-known claims upon the Duchy of Milan, which the Venetians urged him to make good. They proposed to unite forces and to divide the conquered province of Lombardy. Machiavelli does not blame Louis for accepting this offer and acting in concert with the Republic. His mistakes began the moment after he had gained possession of Milan, Genoa, and the majority of the North Italian cities. It was then his true policy to balance Venice against Rome, to assume the protectorate of the minor states, and to keep all dangerous rivals out of Italy. Instead of acting thus, he put Romagna into the hands of the Pope and divided Naples with the King of Spain. 'Louis indeed,' concludes Machiavelli, 'was guilty of five capital errors: he destroyed the hopes of his numerous and weak allies; he increased the power, already too great, of the Papacy; he introduced a foreign potentate; he neglected to reside in Italy; he founded no colonies for the maintenance of his authority. If I am told that Louis acted thus imprudently toward Alexander and Ferdinand in order to avoid a war, I answer that in each case the mistake was as bad as any war could be in its results. If I am reminded of his promise to the Pope, I reply that princes ought to know how and when to break their faith, as I intend to prove. When I was at Nantes, the Cardinal of Rouen told me that the Italians did not know how to conduct a war: I retorted that the French did not understand statecraft, or they would not have allowed the Church to gain so much power in Italy. Experience showed that I was right; for the French wrought their own ruin by aggrandizing the Papacy and introducing Spain into the realm of Naples.'
This criticism contains the very essence of political sagacity. It lays bare the secret of the failure of the French under Charles, under Louis, and under Francis, to establish themselves in Italy. Expeditions of parade, however brilliant, temporary conquests, cross alliances, and bloody victories do not consolidate a kingdom. They upset states and cause misery to nations: but their effects pass and leave the so-called conquerors worse off than they were before. It was the doom of Italy to be ravaged by these inconsequent marauders, who never attempted by internal organization to found a substantial empire, until the mortmain of the Spanish rule was laid upon the peninsula, and Austria gained by marriages what France had failed to win by force of arms.