Vouvray (wine) blanc grape, known locally as "Pineau de la Loire", is believed to have originated in the Anjou wine region sometime in the 9th century and from there eventually migrated to Vouvray. In the 16th and 17th century, Dutch merchants oversaw the plantings of many vineyards in the area to be used for wine trade with markets in London, Paris and Rotterdam. Grapes from all over Touraine were brought together in a mass blending labeled simply as "Vouvray". Wine cellars were built in the region from caves created from the excavation of tuffeau rocks used to build the Châteaux of the
Loire of the estuary), and the beaches of Le Croisic and La Baule along the coastline. Its main tributaries include the rivers Maine, Nièvre and the Erdre on its right bank, and the rivers Allier, Cher, Indre, Vienne, and the Sèvre Nantaise on the left bank. The largest tributary of the river is the Allier, in length, which joins the Loire near the town of Nevers at . Downstream of Nevers lies the Loire Valley, a UNESCO World Heritage Site due to its fine assortment of castles. The second longest tributary is the Vienne which joins the Loire at Candes-Saint-Martin at