Domaines Clarence Dillon (Haut Brion) bought, in 2011, what used to be Château Tertre Daugay, a Grand cru Classé Saint Emilion. The name was chosen following the Roman tradition of calling the fifth child Quintus. The property was originally about 16 hectares of vines on a promontory on the south-west corner of the Saint Emilion plateau, with vines on the limestone of the plateau itself and sloping down on all sides on clay over the limestone base, looking over the Dordogne valley.
In 2013, the Dillon family acquired Château L'Arrosée which they include in the production of Chateau Quintus. This has expanded the property to 28 hectares of vines on a gently sloping plateau 68 meters above sea level in the south west of Saint Emilion. Soil type varies from limestone in the north of the property, to clay and gravel in the south. Merlot represents 66% of the vines planted; Cabernet Franc (26%) and Cabernet Sauvignon (8%) make up the rest.
There are two wines, Château Quintus and its second wine 'Le Dragon de Quintus'.