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;
Treaty of friendship and alliance between the Government of Mongolia and Tibet use the treaty to gain influence on Tibetan matters. While China ultimately did not sign the Simla Convention, a similar treaty, the tripartite Treaty of Kyakhta, was signed by Mongolia, the Republic of China and Russia on 25 May 1915. The agreement affirmed Mongolia's complete autonomy in internal matters and Russian privileges in Mongolia, at the same time formally recognized China's suzerainty over the country. Treaty of friendship and alliance between the Government of Mongolia and Tibet A Treaty of friendship and alliance between the Government of Mongolia and Tibet was signed on 11 January 1913 (corresponding to 29 December