Federico, in his anxiety, made one sacrifice to the monster in the Vatican; he consented to the betrothal of Don Alfonso, Prince of Salerno, younger brother of Donna Sancia and natural son of Alfonso II, to Lucretia.

Alexander desired this marriage for no other reason than for the purpose of finally inducing the king to agree to the marriage of his daughter and Caesar.
Even before Lucretia's new betrothal was settled upon it was rumored in Rome that her former affianced, Don Gasparo, was again pressing his suit and that there was a prospect of his being accepted.

Although the young Spaniard failed to accomplish his purpose, Alexander now recognized the fact that Lucretia's betrothal to him had been dissolved illegally.
In a brief dated June 10, 1498, he speaks of the way his daughter was treated--without special dispensation for breaking the engagement, in order that she might marry Giovanni of Pesaro, which was a great mistake--as illegal.

He says in the same letter that Gasparo of Procida, Count of Almenara, had subsequently married and had children, but not until 1498 did Lucretia petition to have her betrothal to him formally declared null and void.

The Pope, therefore, absolved her of the perjury she had committed by marrying Giovanni Sforza in spite of her engagement to Don Gasparo, and while he now, for the first time, declared her formal betrothal to the Count of Procida to have been dissolved, he gave her permission to marry any man whom she might select.[58] Thus did a pope play fast and loose with one of the holiest of the sacraments of the Church.
When Lucretia had in this way been protected against the demands of all pretenders to her hand, she was free to enter into a new alliance, which she did June 20, 1498, in the Vatican.