Château Fortia is a French wine producing estate in the Châteauneuf-du-Pape region of the Rhône Valley. With a history dating back to the eighteenth century, Château Fortia has long been a notable producer in the southern Rhône. In the early twentieth century, the estate came under the direction of Pierre Le Roy de Boiseaumarié. Baron Le Roy went on to be co-founder of the Institut National des Appellations d'Origine (INAO) and guided the creation of the Appellation d'origine contrôlée (AOC) system which is the basis of not only French wine laws but has also been influential in the laws and appellation systems around the globe.