of fortune, and by some he was advised to do so; but he, being a truly wise ruler, and knowing well that it is by the attachment of their subjects and not by the strength of their fortifications that princes are maintained in their governments, dismantled this citadel; and founding his authority, not upon material defences, but on his own valour and prudence, kept and still keeps it. And whereas, formerly, a force of a thousand foot-soldiers could effect a change in the government of Genoa, the enemies of Ottaviano have assailed him with ten thousand, without being able to harm him.
Here, then, we see that, while to dismantle this fortress occasioned Ottaviano no loss, its construction gave the French king no sort of advantage. For when he could come into Italy with an army, he could recover Genoa, though he had no citadel there; but when he could not come with an army, it was not in his power to hold the city by means of the citadel. Moreover it was costly for the king to build, and shameful for him to lose this fortress; while for Ottaviano it was glorious to take, and advantageous to destroy it.
Let us turn now to those republics which build fortresses not within their own territories, but in towns whereof they have taken possession. And if the above example of France and Genoa suffice not to show the futility of this course, that of Florence and Pisa ought, I think, to be conclusive. For in erecting fortresses to hold Pisa, the Florentines failed to perceive that a city which had always been openly hostile to them, which had lived in freedom, and which could cloak rebellion under the name of liberty, must, if it were to be retained at all, be retained by those methods which were used by the Romans, and either be made a companion or be destroyed. Of how little service these Pisan fortresses were, was seen on the coming of Charles VIII of France into Italy, to whom, whether through the treachery of their defenders or from fear of worse evils, they were at once delivered up; whereas, had there been no fortresses in Pisa, the Florentines would not have looked to them as the