The absolute necessity of speedily acquainting the prime-minister with their intentions, without whose assistance their plot must infallibly fall to the ground, induced them to confide in a rich Lisbon merchant, who was treasurer to the custom-house, and whose extensive trade throughout the whole of Europe caused his majesty to grant him the particular privilege of corresponding with Castille. This man, whose name was Baëse, publicly professed the Christian religion; but being one of those who in Portugal are termed _new_ Christians, he was generally suspected of secretly observing the rites of the Jewish church. A very large sum was offered to engage him in the conspiracy, which, joined to the exhortations of those amongst the Jews who were in the secret, prevailed upon him to accept their proposals, and to undertake conveying their letters to the count-duke d'Olivares.[23] Baësa being charged with the pacquet, directed it to the marquis d'Aïamonte, governor of the first frontier town in Spain, in the full persuasion that, being once safely out of Portugal, there could be no farther cause of apprehension; but, the marquis who was nearly related to the queen of Portugal, and was actually carrying on a negociation with the new king, no sooner perceived the great seal of the inquisition of Lisbon, than he broke open the letters, dreading lest they should contain something relative to his secret correspondence with the king and queen of Portugal; and on discovering the plan of a conspiracy on the point of breaking out, which was to destroy the king and the whole of the royal family, he immediately sent back the pacquet to his majesty, whose astonishment was inexpressible, when, on perusing these letters, he perceived that the princes of his blood, an archbishop, and several grandees of his court, all of whom had demonstrated the greatest joy on his advancement, were conspiring not only to deprive him of the crown, but to put an end to his existence.