Château Romanin is a Provence wine estate located in Saint-Rémy-de-Provence and extends over 58 ha of vines and 4 ha of olive trees. The estate produces red, white and rosé wines in AOP Baux-de-Provence and IGP Alpilles.

The history of the Romanin vineyard is particularly long and rich: it begins in 350 BC, when it was a druidic place where the vineyards of Romanin already offered a famous wine known as the "wine of Theopolis". It then became the property of Claudius Pastumus Dardanus, the last prefect of Gaul, who built the first fort of Romaninus. The Château Romanin was built in the 13th century by the Lord of the place and Templar, Raymond de Gantelme, on his return from the Crusades. In 1851, it was destroyed by a serious fire and it took more than a century to see the vineyard reborn.

In 1992, the estate entrusted the architect Serge Hennemann with the construction of its new cellar, a particularly innovative and original cathedral cellar buried in the rock. In 2006, Anne-Marie and Jean-Louis Charmolüe, former co-owners of Château Montrose in Saint-Estèphe, acquired Château Romanin and since 2018, the date of Jean-Louis' death, it is their daughter Brigitte San Quirce who has taken up the torch alone.

A pioneer in the appellation, Château Romanin has been using biodynamic techniques and principles since 1988, with organic farming as a prerequisite, and all the estate's wines are now certified biodynamic.