But the duke did not stop his preparations, and took every care to provide himself with cavalry and infantry, and that such preparations might not be apparent to the others, he sent his troops in separate parties to every part of the Romagna.

In the meanwhile there came also to him five hundred French lancers, and although he found himself sufficiently strong to take vengeance on his enemies in open war, he considered that it would be safer and more advantageous to outwit them, and for this reason he did not stop the work of reconciliation.
And that this might be effected the duke concluded a peace with them in which he confirmed their former covenants; he gave them four thousand ducats at once; he promised not to injure the Bentivogli; and he formed an alliance with Giovanni; and moreover he would not force them to come personally into his presence unless it pleased them to do so.

On the other hand, they promised to restore to him the duchy of Urbino and other places seized by them, to serve him in all his expeditions, and not to make war against or ally themselves with any one without his permission.
This reconciliation being completed, Guido Ubaldo, the Duke of Urbino, again fled to Venice, having first destroyed all the fortresses in his state; because, trusting in the people, he did not wish that the fortresses, which he did not think he could defend, should be held by the enemy, since by these means a check would be kept upon his friends.
But the Duke Valentino, having completed this convention, and dispersed his men throughout the Romagna, set out for Imola at the end of November together with his French men-at-arms: thence he went to Cesena, where he stayed some time to negotiate with the envoys of the Vitelli and Orsini, who had assembled with their men in the duchy of Urbino, as to the enterprise in which they should now take part; but nothing being concluded, Oliverotto da Fermo was sent to propose that if the duke wished to undertake an expedition against Tuscany they were ready; if he did not wish it, then they would besiege Sinigalia.

To this the duke replied that he did not wish to enter into war with Tuscany, and thus become hostile to the Florentines, but that he was very willing to proceed against Sinigalia.
It happened that not long afterwards the town surrendered, but the fortress would not yield to them because the castellan would not give it up to any one but the duke in person; therefore they exhorted him to come there.

This appeared a good opportunity to the duke, as, being invited by them, and not going of his own will, he would awaken no suspicions.