Tratado preliminar de Paz, e de Limites na America Meridional, relativo aos Estados, que nella possuem as Coroas de Portugal, e de Hespanha, assinada em Madrid pelos plenipotenciários de Suas Magestades Fidelissima, e Catholica, em o primeiro de outubro de MDCCLXXVII, e ratificado por ambas as Magestades.
Lisbon, Na Regia Officina Typografica, 1777.
4to. 31 pp. Wrappers.
The historic Treaty of San Ildefonso, drawn up by the Conde de Floridablanca and Queen Maria Ana Victoria, dowager Queen of Portugal, finally established the boundaries in South America between Spain and Portugal, after nearly three centuries of political wrangles. By its terms Portugal ceded to Spain Colônia do Sacramento, strategically important for control of the Río de la Plata, the Seven Missions territory, and her navigational rights on the Rio Paraná and the Rio Paraguay, but she retained her sovereignty over the Rio Grande de São Pedro and the island of Santa Catarina. Portugal also renounced any claims to the Philippine Islands she might hold by virtue of the Treaty of Tordesillas of 1494. "It was the product of a new accord between Lisbon and Madrid . . possible because of the retirement from Court of two long-time protagonists, Grimaldi and Pombal. . . Portugal agreed to cede to Spain Colônia do Sacramento and certain offshore islands . . The limits between Spanish and Portuguese territory in South America were defined as beginning at the Arroio Chuí, thence following the western shore of Lagoa Mirim, bending westward beyond that lagoon to skirt just east of the sources of the Rio Ibicuí, then running due north, bisecting the Uruguay River at its Pepiri-Guaçu tributary. . . Surprisingly enough, Spain returned Santa Catarina Island to Portugal, though under humiliating conditions. . . The Treaty of San Ildefonso brought an end to fifteen years of intermittent fighting between Spain and Portugal, and resulted in a permanent division of the Debatable Lands between the two powers" (Dauril Alden, Royal Government in Colonial Brazil, pp. 263-7).
Sabin 96554. Palau 339307. Borba de Moraes II, 867, "this is the original edition of the famous Treaty of San Ildefonso." Rodrigues 2383. Gauz, Portuguese and Brazilian Books in the John Carter Brown Library 1537-1839, 777/2. Bosch, Brasilien-Bibliothek, 227. Palha 3399. (Cf. JCB Cat. 2429 for Spanish version.)