History of Bordeaux wine became the base for Richard's French operations. As the popularity of Bordeaux wine increased, the vineyards expanded to accommodate the demands from abroad. Henry and Aliénor youngest son, John was in favor of promoting the wine industry, and to increase it further, abolished the "Grande Coutume" export tax to England from the Aquitaine region. In the 13th and 14th century, a code of business practices called the "police des vins" emerged to give Bordeaux wine a distinct trade advantage over its neighboring regions. The citizenry of Bordeaux worked diligently to promote and foster their relationship with the English market. In
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