This was the state of Florence, in which opposing feelings began to be observable, when Filippo Visconti, second son of Giovanni Galeazzo, having, by the death of his brother, become master of all Lombardy, and thinking he might undertake almost anything, greatly desired to recover Genoa, which enjoyed freedom under the Dogiate of Tommaso da Campo Fregoso.  He did not think it advisable to attempt this, or any other enterprise, till he had renewed amicable relations with the Florentines, and made his good understanding with them known; but with the aid of their reputation he trusted he should attain his wishes.  He therefore sent ambassadors to Florence to signify his desires.  Many citizens were opposed to his design, but did not wish to interrupt the peace with Milan, which had now continued for many years.  They were fully aware of the advantages he would derive from a war with Genoa, and the little use it would be to Florence.  Many others were inclined to accede to it, but would set a limit to his proceedings, which, if he were to exceed, all would perceive his base design, and thus they might, when the treaty was broken, more justifiably make war against him.  The question having been strongly debated, an amicable arrangement was at length effected, by which Filippo engaged not to interfere with anything on the Florentine side of the rivers Magra and Panaro.

Soon after the treaty was concluded, the duke took possession of Brescia, and shortly afterward of Genoa, contrary to the expectation of those who had advocated peace; for they thought Brescia would be defended by the Venetians, and Genoa would be able to defend herself.  And as in the treaty which Filippo made with the Doge of Genoa, he had acquired Serezana and other places situated on this side the Magra, upon condition that, if he wished to alienate them, they should be given to the Genoese, it was quite palpable that he had broken the treaty; and he had, besides, entered into another treaty with the legate of Bologna, in opposition to his engagement respecting the Panaro.  These things disturbed the minds of the citizens, and made them, apprehensive of new troubles, consider the means to be adopted for their defense.

The dissatisfaction of the Florentines coming to the knowledge of Filippo, he, either to justify himself, or to become acquainted with their prevailing feelings, or to lull them to repose, sent ambassadors to the city, to intimate that he was greatly surprised at the suspicions they entertained, and offered to revoke whatever he had done that could be thought a ground of jealousy.  This embassy produced no other effect than that of dividing the citizens; one party, that in greatest reputation, judged it best to arm, and prepare to frustrate the enemy’s designs; and if he were to remain quiet, it would not be necessary to go to war with him, but an endeavor might be made to preserve peace.  Many others, whether envious of those in power, or fearing a rupture with the duke,