Philip, however, wished to be quite sure that {186} James was really to be a Catholic before helping him to the succession of the English crown. Father Persons and five or six Jesuits were busy in Scotland with Spanish money plotting for the restoration of the Catholic religion, and the young King himself told them, "that though for certain reasons it was advisable for him to appear publicly in favour of the French, he in his heart would rather be Spanish." Even thus early James' duplicity was the subject of wonder to those who surrounded him; and in January, 1582, Mary wrote rather doubtfully about his religion to Mendoza, the Spanish ambassador in England. "The poor child," she said, "was so surrounded by heretics that she had only been able to obtain the assurance that he would listen to the priests she sent him." But she assures the Spaniard that she will bind herself and her son exclusively to Philip in future, and begs that the Scottish courtiers should be bribed in his interest. The Catholic revival in Scotland was being vigorously worked by the Jesuits and the nobles, and it soon became evident to them also that James was too slippery to be depended upon. So they sent Father Holt to London in February with some important proposals. The rank and file of the Jesuits had no idea that their Catholic propaganda in Scotland had been contrived and paid for by Spain with a political object, and Holt was astounded when the person to whom he was directed in London took him to Mendoza. His message was that the Scottish nobles had decided, as a last resource, if James continued obstinate, to depose him, and either convey him abroad or hold him a prisoner until {187} his mother arrived in Scotland. They besought the guidance of the King of Spain in the matter, and begged that 2,000 foreign troops might be sent to them to carry out their plans. This message was repeated in a softened form to Mary Stuart in her English prison, and Mendoza urged his master to send the troops requested, "with the support of whom the Scots might encounter Elizabeth, and the whole of the English north country would be disturbed, the Catholics there being in a majority; and the opportunity would be taken for the Catholics in the other parts of the country to rise, when they knew they had on their side the forces of a more powerful prince than the King of Scotland." Philip was on the Portuguese frontier at the time, and affairs in Madrid were being managed by the aged Cardinal de Granvelle, who sent to the King notes and recommendations on all letters received.