Paul Methuen (diplomat) gained valuable diplomatic experience and the esteem of King Pedro. During two absences of his father he became chargé d'affaires, rising to Minister on his father's appointment as Lord Chancellor of Ireland in 1697. He was unable to prevent a Portuguese-French alliance in 1701. When his father returned to Portugal a special envoy in 1702, they were successful in breaking the alliance in 1703. The led to the Methuen commercial treaty between England and Portugal, the basis of Britain's monopoly of Portuguese trade for much of the 18th century. His father remained in Portugal as ambassador. In 1705, Methuen served
Boundary Treaty of 1866 between Chile and Bolivia and Chile reopened talks which concluded with the Treaty of Sucre or Boundary Treaty between Bolivia and Chile of 1874 (see English version in ). The pact kept the 24th parallel as the boundary between Bolivia and Chile and Chile relinquished its former rights of condominium in return for no future nitrate tax increases over Chilean companies. Boundary Treaty of 1866 between Chile and Bolivia The Boundary Treaty of 1866 between Chile and Bolivia, also called the Mutual Benefits Treaty, was signed in Santiago de Chile on August 10, 1866 by the Chilean Foreign Affairs Minister Alvaro Covarrubias and the