In 1750, he signed the agreement between Spain and Portugal that finished the disputes over the borders of Río de la Plata and Brazil; Colonia del Sacramento returned to Spain in exchange of some Paraguayan territories.
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He was son of the Duke of Liñares and his mother was descendant of infante Jorge de Lancastre, a natural son of King John II of Portugal.
Lancaster | Avro Lancaster | San Jose | San José | San José, Costa Rica | José Carreras | Lancaster University | Burt Lancaster | Lancaster, Pennsylvania | House of Lancaster | José Feliciano | San Jose Mercury News | Lancaster County, Pennsylvania | José José | José Saramago | José María Aznar | José Ferrer | San Jose State University | José Rizal | José de San Martín | San Jose Sharks | Lancaster, Lancashire | Chancellor of the Duchy of Lancaster | San José Province | José Raúl Capablanca | José Limón | José Martí | José Luis Rodríguez Zapatero | José González | José Clemente Orozco |