After the Battle of Aljubarrota / Alcobaça 1385 and the Treaty of Windsor (1386) a flourishing wine trade with Great Britain arose. Under Henry the sailor, Muscat and Malvasia grapes were planted on the rediscovered island of Madeira. After the collection of high duties on French wines by William III. In 1693 the English wine merchants discovered the Portuguese red wine as an alternative. The port wine and the Madeira became the export ships.