South West France (wine region) the grapes to be harvested earlier and the wines to be of a stronger alcohol level. Many Bordeaux wine merchants saw the wines of the "High Country" as a threat to their economic interest and during the 13th & 14th century a set of codes, known as the "police des vins", were established which regulated the use of the port of Bordeaux for wine trading. The "police des vins" stated that no wine could be traded out of Bordeaux until the majority of Bordelais wine had already been sold. This had a devastating effect on the wine industry of the
Ancient Rome and wine of Cordoba and the sherry winemaking region of Cádiz. While the Carthaginians and Phoenicians were the first to introduce viticulture to Spain, Rome's influential wine technology and the development of road networks brought new economic opportunities to the region, elevating grapes from a private agricultural crop to an important component of a viable commercial enterprise. Spanish wine was in Bordeaux before the region produced its own. French historian Roger Dion has suggested that the balisca vine (common in Spain's northern provinces, particularly Rioja) was brought from Rioja to plant the first Roman vineyards of Bordeaux. Spanish wines were frequently traded