[7] Pandolfo was murdered in 1393. Gian Galeazzo possessed himself of Perugia in 1400, having paved his way for the usurpation by causing Biordo Michelotti, the successor of the Baglioni to be assassinated by his friend Francesco Guidalotti. It will be noticed that he proceeded slowly and surely in the case of each annexation, licking over his prey after he had throttled it and before he swallowed it, like a boa-constrictor.

There remained no power in Italy, except the Republic of Florence and the exiled but invincible Francesco da Carrara, to withstand his further progress. Florence delayed his conquests in Tuscany. Francesco managed to return to Padua. Still the peril which threatened the whole of Italy was imminent. The Duke of Milan was in the plenitude of manhood—rich, prosperous, and full of mental force. His acquisitions were well cemented; his armies in good condition; his treasury brim full; his generals highly paid. All his lieutenants in city and in camp respected the iron will and the deep policy of the despot who swayed their action from his arm-chair in Milan. He alone knew how to use the brains and hands that did him service, to keep them mutually in check, and by their regulated action to make himself not one but a score of men. At last, when all other hope of independence for Italy had failed, the plague broke out with fury in Lombardy. Gian Galeazzo retired to his isolated fortress of Marignano in order to escape infection. Yet there in 1402 he sickened. A comet appeared in the sky, to which he pointed as a sign of his approaching death—'God could not but signalize the end of so supreme a ruler,' he told his attendants. He died aged 55. Italy drew a deep breath. The danger was passed.

The systematic plan conceived by Gian Galeazzo for the enslavement of Italy, the ability and force of intellect which sustained him in its execution, and the power with which he bent men to his will, are scarcely more extraordinary than the sudden dissolution of his dukedom at his death. Too timid to take the field himself, he had trained in his service a band of great commanders, among whom Alberico da Barbino, Facino Cane, Pandolfo Malatesta, Jacopo dal Verme, Gabrino Fondulo, and Ottobon Terzo were the most distinguished. As long as he lived and held them in leading strings, all went well. But at his death his two sons were still mere boys. He had to intrust their persons, together with the conduct of his hardly won dominions, to these captains in conjunction with the Duchess Catherine and a certain Francesco Barbavara. This man had been the Duke's body-servant, and was now the paramour of the Duchess. The generals refused to act with them; and each seized upon such portions of the Visconti inheritance as he could most easily acquire. The vast tyranny of the first Duke of Milan fell to pieces in a day. The whole being based on no legal right, but held together artificially by force and skill, its constituent parts either reasserted their independence or became the prey of adventurers.[1] Many scions of the old ejected families recovered their authority in the subject towns. We hear again of the Scotti at Piacenza, the Rossi and Correggi at Parma, the Benzoni at Crema, the Rusconi at Como, the Soardi and Colleoni at Bergamo, the Landi at Bobbio, the Cavalcabò at Cremona. Facino Cane appropriated Alessandria; Pandolfo Malatesta seized Brescia; Ottonbon Terzo established himself in Parma. Meanwhile Giovanni Maria Visconti was proclaimed Duke of Milan, and his brother Filippo Maria occupied Pavia. Gabriello, a bastard son of the first duke, fortified himself in Crema.

[1] The anarchy which prevailed in Lombardy after Gian Galeazzo's death makes it difficult to do more than signalize a few of these usurpations. Corio, pp. 292 et seq., contain the details.

In the despotic families of Italy, as already hinted, there was a progressive tendency to degeneration. The strain of tyranny sustained by force and craft for generations, the abuse of power and pleasure, the isolation and the dread in which the despots lived habitually, bred a kind of hereditary madness.[1] In the case of Giovanni Maria and Filippo Maria Visconti these predisposing causes of insanity were probably intensified by the fact that their father and mother were first cousins, the grandchildren of Stefano, son of Matteo il Grande. Be this as it may, the constitutional ferocity of the race appeared as monomania in Giovanni, and its constitutional timidity as something akin to madness in his brother. Gian Maria, Duke of Milan in nothing but in name, distinguished himself by cruelty and lust. He used the hounds of his ancestors no longer in the chase of boars, but of living men. All the criminals of Milan, and all whom he could get denounced as criminals, even the participators in his own enormities, were given up to his infernal sport. His huntsman, Squarcia Giramo, trained the dogs to their duty by feeding them on human flesh, and the duke watched them tear his victims in pieces with the avidity of a lunatic.[2] In 1412 some Milanese nobles succeeded in murdering him, and threw his mangled corpse into the street. A prostitute is said to have covered it with roses. Filippo Maria meanwhile had married the widow of Facino Cane,[3] who brought him nearly half a million of florins for dowry, together with her husband's soldiers and the cities he had seized after Gian Galeazzo's death. By the help of this alliance Filippo was now gradually recovering the Lombard portion of his father's dukedom. The minor cities, purged by murder of their usurpers, once more fell into the grasp of the Milanese despot, after a series of domestic and political tragedies that drenched their streets with blood. Piacenza was utterly depopulated. It is recorded that for the space of a year only three of its inhabitants remained within the walls.

[1] I may refer to Dr. Maudsley (Mind and Matter) for a scientific statement of the theory of madness developed by accumulated and hereditary vices.

[2] Corio, p. [301] mentions by name Giovanni da Pusterla and Bertolino del Maino as 'lacerati da i cani del Duca.' Members of the families of these men afterwards helped to kill him.

[3] Beatrice di Tenda, the wife of Facino Cane, was twenty years older than the Duke of Milan. As soon as the Visconti felt himself assured in his duchy, he caused a false accusation to be brought against her of adultery with the youthful Michele Oranbelli, and, in spite of her innocence, beheaded her in 1418. Machiavelli relates this act of perfidy with Tacitean conciseness (1st. Fior. lib. i. vol. i. p. 55): 'Dipoi per esser grato de' benefici grandi, come sono quasi sempre tutti i Principi, accusè Beatrice sua moglie di stupro e la fece morire.'

Filippo, the last of the Visconti tyrants, was extremely ugly, and so sensitive about his ill-formed person that he scarcely dared to show himself abroad. He habitually lived in secret chambers, changed frequently from room to room, and when he issued from his palace refused salutations in the streets. As an instance of his nervousness, the chroniclers report that he could not endure to hear the noise of thunder.[1] At the same time he inherited much of his father's insight into character, and his power of controlling men more bold and active than himself. But he lacked the keen decision and broad views of Gian Galeazzo. He vacillated in policy and kept planning plots which seemed to have no object but his own disadvantage. Excess of caution made him surround the captains of his troops with spies, and check them at the moment when he feared they might become too powerful. This want of confidence neutralized the advantage which he might have gained by his choice of fitting instruments. Thus his selection of Francesco Sforza for his general against the Venetians in 1431 was a wise one. But he could not attach the great soldier of fortune to himself. Sforza took the pay of Florence against his old patron, and in 1441 forced him to a ruinous peace; one of the conditions of which was the marriage of the Duke of Milan's only daughter, Bianca, to the son of the peasant of Cotignola. Bianca was illegitimate, and Filippo Maria had no male heir. The great family of the Visconti had dwindled away. Consequently, after the duke's death in 1447, Sforza found his way open to the Duchy of Milan, which he first secured by force and then claimed in right of his wife. An adverse claim was set up by the House of Orleans, Louis of Orleans having married Valentina, the legitimate daughter of Gian Galeazzo.[2] But both of these claims were invalid, since the investiture granted by Wenceslaus to the first duke excluded females. So Milan was once again thrown open to the competition of usurpers.

[1] The most complete account of Filippo Maria Visconti written by a contemporary is that of Piero Candido Decembrio (Muratori, vol. xx.). The student must, however, read between the lines of this biography, for Decembrio, at the request of Leonello d' Este, suppressed the darker colors of the portrait of his master. See the correspondence in Rosmini's Life of Guarino da Verona.