Leoninus was instructed to give assurance that the treaty just concluded should be maintained, that the Spaniards should depart, that all other promises should be inviolably kept, and that the Governor would take up arms against all who should oppose the fulfilment of his engagements.

He was to represent that Don John, in proof of his own fidelity, had placed himself in the power of the states.

He was to intimate to the Prince that an opportunity was now offered him to do the crown a service, in recompence for which he would obtain, not only pardon for his faults, but the favor of the monarch, and all the honors which could be desired; that by so doing he would assure the future prosperity of his family; that Don John would be his good friend, and, as such; would do more for him than he could imagine.

The envoy was also to impress upon the Prince, that if he persisted in his opposition every man's hand would be against him, and the ruin of his house inevitable.

He was to protest that Don John came but to forgive and to forget, to restore the ancient government and the ancient prosperity, so that, if it was for those objects the Prince had taken up arms, it was now his duty to lay them down, and to do his utmost to maintain peace and the Catholic religion.