It was Cesare Borgia who took the initiative in the pomp with which his brother was received in Rome, riding out at the head of the entire Pontifical Court to meet and welcome the young duke.
In addition to being Duke of Gandia, Giovanni Borgia was already Duke of Sessa and Prince of Teano, which further dignities had been conferred upon him on the occasion of his brother Giuffredo's marriage to Donna Sancia.

To these the Pope now added the governorship of Viterbo and of the Patrimony of St.Peter, dispossessing Cardinal Farnese of the latter office to bestow it upon this well-beloved son.
In Venice it was being related, a few months later,--in October--that Gandia had brought a woman from Spain for his father, and that the latter had taken her to live with him.

The story is given in Sanuto, and of course has been unearthed and served up by most historians and essayists.

It cannot positively be said that it is untrue; but it can be said that it is unconfirmed.

There is, for instance, no word of it in Burchard's Diarium, and when you consider how ready a chronicler of scandalous matter was this Master of Ceremonies, you will no doubt conclude that, if any foundation there had been for that Venetian story, Burchard would never have been silent on the subject.
The Pope had taken into his pay that distinguished condottiero, Duke Guidobaldo of Urbino, who later was to feel the relentless might of Cesare.