To this beneficent administration the aspiring Cosmo had long offered a troublesome opposition; and he now succeeded in ensnaring it into a ruinous war with Lucca, by which he obtained the double object of destroying its popularity, and of employing considerable sums of money with unusual profit. But the reverses of the republic were attributed to a treasonable correspondence between him and the enemy, and in 1433 he was seized and condemned to ten years’ banishment, having averted capital punishment by a timely bribe. The absence of a citizen who spent more than a great king in acts of piety, benevolence, and liberality, was, however, severely felt in the small city of Florence, and the intelligence of the honours he received everywhere in his exile raised him still more in public estimation. The number of his friends increased, indeed, so rapidly, that at the September elections in the following year they completely defeated the ruling party, and chose a set of magistrates by whom he was immediately recalled. This event, erroneously considered as a victory of the people over an aristocracy, was, properly speaking, a triumph of the populace over the more educated classes of the community, and it proved fatal to the republic. Placed by fame, wealth, and talent, at an immeasurable elevation above the obscure materials of his faction, from the moment of his return to that of his death, August, 1464, Cosmo exercised such an influence in the state, that, though he seldom filled any ostensible office, he governed it with absolute authority by means of persons wholly subservient to his will. But, under the pretence of maintaining peace and tranquillity, he superseded its free institutions by a junto invested with dictatorial power; he caused an alarming number of the most respectable citizens to be banished, ruined by confiscation, or even put to death, on the slightest suspicion that by their wealth or connexions they might oppose his schemes of ambition; and he laboured with indefatigable zeal to enslave his own confiding countrymen, not only by spreading secret corruption at home, but also by changing the foreign policy of his predecessors, and helping his great friend, Francesco Sforza, and other usurpers, to crush the liberties of neighbouring states.