According to D. Carlos, D. John could hope for nothing from the King but stingy rewards, limited ever by his envy, avarice and tyrannical deeds; he, on the other hand, would give D. John all a king's best friend could hope for, and he then offered, as if he owned them, the States of Milan or the Kingdom of Naples. D. John looked at him up and down, amazed, without knowing whether to wonder more at the blackness of the treason or the absurdity of the design. He understood, however, how useless and dangerous it would be to contradict D. Carlos openly, or to throw in his teeth, as he deserved, all the contempt and horror which his plan inspired.
So he chose a side attack, making D. Carlos see how difficult and dangerous an undertaking it was, the dreadful consequences to which it might lead in Flanders and Italy, and even among the restless Spanish Moors, the bad example of a son rising against his father, and the grave risk there was of discovery, so many people having been told by D. Carlos. The Prince had an answer for everything.
Everything, according to him, had been thought of and arranged, and it only remained for Garci Álvarez Osorio to exchange for money some letters of exchange he had brought from Seville, and for him, D. John, as General of the Sea, to give him a safe conduct, putting at the disposal of D. Carlos one of the galleys in Cartagena, and then to come with the rest to join D. Carlos in that part of Italy which he should designate.
This determined D. John. Seeing, as a Christian, a brother of the King, and as an honourable gentleman, that there was only one way of stopping such disasters, and in order to adopt it, he asked D. Carlos to give him twenty-four hours in which to think the matter over. This the Prince conceded reluctantly, as it was, according to him, necessary to profit by the absence of the King, who had gone to the Escorial three days before, and was to return to Madrid for the Feast of the Epiphany.
Very early the next day D. John started for the Escorial, where, as a loyal prince and an honourable gentleman, he told his brother the absurd plans and mischievous intentions of D. Carlos, to whom he explained his audience as a command from the King, who had sent for him to give him urgent orders about the galleys at Cartagena.
D. Carlos had no suspicions and continued his preparations, until the situation was complicated by a notable incident, very characteristic of the time. That year (1567) the general Jubilee granted by Pius V, in honour of his elevation to the Pontificate, was being celebrated, and to gain it he fixed the 28th of December, the Feast of the Holy Innocents.
On the 27th D. Carlos went late to the convent of St. Jerónimo to confess and to gain the Jubilee the next day. It was already eight o'clock, and he went in a coach, with a very small retinue. It should be noted that the official and usual confessor of D. Carlos was Fr. Diego de Chaves, and that on that day he asked for some other brother.
The result was that this confessor would not give the Prince absolution, because he said that he harboured the mortal sin of hatred of a man, and that this hate would not end until he had killed him.
The brother, as we have said, refused absolution. The Prince said, "Father, make up your mind quickly." To which the friar answered, "Your Highness must consult the theologians."
D. Carlos got up very much put out, and sent his coach to Atocha to bring theologians, and fourteen came, as many as the coach, which was small, would hold, two by two. "And then," says the account of one of the Prince's attendants, who was there that night, "he sent to Madrid for Alvarado the Augustin, and for Trinitario, and the Prince disputed with each, and persisted that they should absolve him, even for killing a man who was on bad terms with him. And as all said they could not, they resolved, for the sake of the people, to give him an unconsecrated wafer at communion."