Methuen Treaty higher tariffs on Portuguese goods, and the Irish Volunteers' 1782 Dungannon resolutions included calls for a boycott of its wines. The 1786 Eden Agreement between Britain and France caused Portugal to relent in 1787 and allow Ireland low tariffs. Methuen Treaty The Methuen Treaty was a military and commercial treaty between England and Portugal that was signed in 1703 as part of the War of the Spanish Succession. The treaty stipulated that no tax higher than the tax charged for an equal amount of French wines could be charged for Portuguese wines "(but see below)" exported to England, and that
Commercial treaty legislation of the 18th century. In that year Pitt concluded a commercial treaty with France, providing for large reductions of duties in both countries. But the treaty was swept away with the outbreak of the wars with France, and accordingly the old system was still in force in 1815. The first important step, and in some respects the decisive step, towards modifying it was taken in 1824, under the policy of Huskisson. In that year, and again in 1825, great reductions were made in the duties on raw materials, especially on wool, raw silk, flax and iron, while considerable reductions