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
Treaty of the Dardanelles treaty affirmed the principle that no warships of any power should enter the straits of the Dardanelles and the Bosporus. The treaty anticipated the London Straits Convention of 1841, by which the other major powers committed themselves to this same principle. Treaty of the Dardanelles The Treaty of the Dardanelles (also known as the Dardanelles Treaty of Peace, Commerce, and Secret Alliance, the Treaty of Çanak, the Treaty of Chanak or ) was concluded between the Ottoman Empire and the United Kingdom of Great Britain and Ireland on 5 January 1809 at Çanak, Ottoman Empire. The treaty ended the Anglo-Turkish