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
History of Bordeaux wine style of dry white Bordeaux favoured today, with almost 100% Sauvignon Blanc and a heavy influence of new oak, the traditional Entre-deux-Mers whites had a high proportion of Semillion and were made in either old oak barrels or steel tanks. Starting in the 1960s and 1970s, these vineyards were converted to red wine production (of Bordeaux AOC and Bordeaux Supérieur AOC), and the production of white wine has decreased ever since. Today production of white wine has shrunk to about one tenth of Bordeaux's total production, with 11.0% of the vineyard surface in 2007 used for white wines (7.8% for