History of Portuguese wine country unfavorable for viticulture, making the country a ready market for imported wines; its proximity to France, made French wines a natural source. At times the supply was threatened by political and military conflicts between the English and French crowns. New sources had to be found such as the wines of Portugal. Documents exist detailing Portuguese wine shipments from the Minho region to England occurring as early as the 12th century. These wines, including those from the wet northern region of modern-day Vinho Verde, were often light and astringent with noticeable acidity. Despite the new source, the variety of French
Vinho Verde from Espadeiro and Padeiro grapes. The Romans Seneca the Younger and Pliny the Elder both made reference to vines in the area between the rivers Douro and Minho. A record exists of a winery being donated to the Alpendurada convent in Marco de Canaveses in 870 AD, and the vineyards seem to have expanded over the following centuries, planted by religious orders and encouraged by tax breaks. Wines were mostly produced for domestic consumption, although Vinho Verde may have been exported in the 12th century, to England, Germany, and Flanders. The first definite exports to England are recorded by John