John Methuen (diplomat) the Treaty on 16 May 1703, a step of great significance in the War of the Spanish Succession. John, on his return from England, concluded a commercial treaty on 27 December 1703, opening Portugal to the English cloth trade in return for preferential rates of duty on the import of wine. How beneficial to either country the Treaty was in the long run has been debated; possibly its most important result was the development of the port wine trade, and it was later referred to humorously as "the Port-Wine Treaty". Methuen in later life increasingly suffered from gout and rheumatism;
Boundary Treaty of 1874 between Chile and Bolivia Plenipotentiary in Bolivia) as follows: In 1874, Peruvian Navy officer Miguel Grau (Commander of the Navy during the war) advised to the diplomacy of his country the internationalization of the Bolivian province of Antofagasta In August 1874, Bolivia and Chile substituted the Treaty of 1866 with a new Treaty that kept the 24th degree parallel as the boundary between both countries but ended the Mutual Benefits Zone defined in 1866 between the 23°S and 25°S. Further, Chile relinquished its share of export taxes on minerals shipped from Bolivia, and Bolivia agreed not to raise taxes on Chilean enterprises in Bolivia