According to this, the Lord of Pesaro's chamberlain, Giacomino, was in Lucrezia's apartments one evening when Cesare was announced, whereupon, by Lucrezia's orders, Giacomino concealed himself behind a screen.

The Cardinal of Valencia entered and talked freely with his sister, the essence of his conversation being that the order had been issued for her husband's death.
The inference to be drawn from this is that Giovanni had been given to choose in the matter of a divorce, and that he had refused to be a party to it, whence it was resolved to remove him in a still more effective manner.
Be that as it may, the chroniclers of Pesaro proceed to relate that, after Cesare had left her, Lucrezia asked Giacomino if he had heard what had been said, and, upon being answered in the affirmative, urged him to go at once and warn Giovanni.

It was as a consequence of this alleged warning that Giovanni made his precipitate departure.
A little while later, at the beginning of June, Lucrezia left the Vatican and withdrew to the Convent of San Sisto, in the Appian Way, a step which immediately gave rise to speculation and to unbridled gossip, all of which, however, is too vague to be worthy of the least attention.
Aretino's advices to the Cardinal Ippolito d'Este suggest that she did not leave the Vatican on good terms with her family, and it is very possible, if what the Pesaro chroniclers state is true, that her withdrawal arose out of her having warned Giovanni of his danger and enabled him to escape.
At about the same time that Lucrezia withdrew to her convent her brother Gandia was the recipient of further honours at the hands of his fond father.

The Pope had raised the fief of Benevento to a dukedom, and as a dukedom conferred it upon his son, to him and to his legitimate heirs for ever.

To this he added the valuable lordships of Terracina and Pontecorvo.
Cesare, meanwhile, had by no means been forgotten, and already this young cardinal was--with perhaps the sole exception of the Cardinal d'Estouteville--the richest churchman in Christendom.