No one doubted that Caesar was the culprit, but no one could prove it.

So the most serene republic, which could not, considering their war with the Turks, be embroiled with the pope, forbade Caracciuala to take any sort of private vengeance, and so the talk grew gradually less, and at last the occurrence was no more mentioned.
But the pleasures of the winter had not diverted Caesar's mind from his plans about Faenza.

Scarcely did the spring season allow him to go into the country than he marched anew upon the town, camped opposite the castle, and making a new breach, ordered a general assault, himself going up first of all; but in spite of the courage he personally displayed, and the able seconding of his soldiers, they were repulsed by Astor, who, at the head of his men, defended the breach, while even the women, at the top of the rampart, rolled down stones and trunks of trees upon the besiegers.

After an hour's struggle man to man, Caesar was forced to retire, leaving two thousand men in the trenches about the town, and among the two thousand one of his bravest condottieri, Valentino Farnese.
Then, seeing that neither excommunications nor assaults could help him, Caesar converted the siege into a blockade: all the roads leading to Faenza were cut off, all communications stopped; and further, as various signs of revolt had been remarked at Cesena, a governor was installed there whose powerful will was well known to Caesar, Ramiro d'Orco, with powers of life and death over the inhabitants; he then waited quietly before Faenza, till hunger should drive out the citizens from those walls they defended with such vehement enthusiasm.

At the end of a month, during which the people of Faenza had suffered all the horrors of famine, delegates came out to parley with Caesar with a view to capitulation.
Caesar, who still had plenty to do in the Romagna, was less hard to satisfy than might have been expected, and the town yielded an condition that he should not touch either the persons or the belongings of the inhabitants, that Astor Manfredi, the youthful ruler, should have the privilege of retiring whenever he pleased, and should enjoy the revenue of his patrimony wherever he might be.
The conditions were faithfully kept so far as the inhabitants were concerned; but Caesar, when he had seen Astor, whom he did not know before, was seized by a strange passion for this beautiful youth, who was like a woman: he kept him by his side in his own army, showing him honours befitting a young prince, and evincing before the eyes of all the strongest affection for him: one day Astor disappeared, just as Caracciuolo's bride had disappeared, and no one knew what had become of him; Caesar himself appeared very uneasy, saying that he had no doubt made his escape somewhere, and in order to give credence to this story, he sent out couriers to seek him in all directions.
A year after this double disappearance, there was picked up in the Tiber, a little below the Castle Sant' Angelo, the body of a beautiful young woman, her hands bound together behind her back, and also the corpse of a handsome youth with the bowstring he had been strangled with tied round his neck.