After the death of Niccolo Piccinino and the peace of La Marca, Filippo wishing to procure a leader of his forces, secretly negotiated with Ciarpellone, one of the principal captains of Count Francesco, and arrangements having been made, Ciarpellone asked permission to go to Milan to take possession of certain castles which had been given him by Filippo during the late wars. The count suspecting what was in progress, in order to prevent the duke from accommodating himself at his expense, caused Ciarpellone to be arrested, and soon afterward put to death; alleging that he had been detected plotting against him. Filippo was highly annoyed and indignant, which the Venetians and the Florentines were glad to observe, for their greatest fear was, that the duke and the count should become friends. The duke's anger caused the renewal of war in La Marca. Gismondo Malatesti, lord of Rimino, being son-in-law of the count, expected to obtain Pesaro; but the count, having obtained possession, gave it to his brother, Alessandro. Gismondo, offended at this, was still further exasperated at finding that Federigo di Montefeltro, his enemy, by the count's assistance, gained possession of Urbino. He therefore joined the duke, and solicited the pope and the king to make war against the count, who, to give Gismondo a taste of the war he so much desired, resolved to take the initiative, and attacked him immediately. Thus Romagna and La Marca were again in complete confusion, for Filippo, the king, and the pope, sent powerful assistance to Gismondo, while the Florentines and Venetians supplied the count with money, though not with men. Nor was Filippo satisfied with the war in Romagna, but also desired to take Cremona and Pontremoli from the count; but Pontremoli was defended by the Florentines, and Cremona by the Venetians. Thus the war was renewed in Lombardy, and after several engagements in the Cremonese, Francesco Piccinino, the leader of the duke's forces, was routed at Casale, by Micheletto and the Venetian troops. This victory gave the Venetians hope of obtaining the duke's dominions. They sent a commissary to Cremona, attacked the Ghiaradadda, and took the whole of it, except Crema. Then crossing the Adda, they overran the country as far as Milan. Upon this the duke had recourse to Alfonso, and entreated his assistance, pointing out the danger his kingdom would incur if Lombardy were to fall into the hands of the Venetians. Alfonso promised to send him troops, but apprised him of the difficulties which would attend their passage, without the permission of the count.