Brooks: Diplomacy and the Borderilds 135 Adams had proposed that all grants made by the Spanish king subsequent to August 11, 1802, be declared invalid, those of earlier date to be maintained. Before Pizarro could comment on Adams' proposal, however, he learned that Ferdinand had issued to three favorites, the Duke of Alag6n, the Count of Pufionrostro, and Pedro de Vargas, grants embracing almost all the unoccupied lands in the FloridasI Such a procedure, if upheld, would seriously jeopardize the agreement to a treaty by disrupting the plans of Adams for the sale of the lands. Erving learned that the grants had been made and accord- ingly warned Adams in February. Later he transmitted copies of the grants. A despatch sent in September indicated that the Pu- fionrostro grant had been made as early as mid-December of the preceding year.' Erving had taken up the matter with Pizarro, and "brought him to consent that these grants might be cancelled." Erving reported that Pizarro "said enough to convince me that there will be no diffi- culty on this head."' But Pizarro did not and could not promise any satisfaction; nor could he be certain, as he suggested, that the grants would be withdrawn and the favorites recompensed with land in other parts of New Spain. Pizarro had himself been duped, as we know from the words of his aide, Heredia. The latter declared that the grants were made without the knowledge of the foreign office, and that, although Pizarro protested against them with de- termination before the Consejo, he had slight success.' An order was issued, indeed, that the grantees should not sell any of their land for the present, but that did not eliminate the difficulty." In his note to Onis on April 25, Pizarro showed that he was wor- ried by this complication. He could offer no solution; but in com- menting upon Adams' proposal that 1802 be the determining date he said that that concession might be made. Pizarro certainly would rather have given up these grants specifically than yield further on the western boundary. It does not appear that he gave Onis the dates of the grants-he may not even have known them I Pizarro concluded this important despatch by warning Onis not to let the Floridas go without providing a definite settlement of limits on the west. He advanced at this time the first step in that delineation as finally embodied in the treaty. If it were absolutely necessary, in order to avoid a break in the negotiations or recogni-