Tertre Daugay is a 16-hectare property located in Saint-Émilion on the southern edge of town. Comte Léo de Roquefort Malet, the owner of La Gaffelière bought this property in 1978 and carried out major renovations by replanting much of the property as the vineyards were in a poor state. He hired Stéphane Derononcourt as consulting oenologist. Though the wine had improved, Robert Parker described the 2003 vintage as "perhaps the finest Tertre Daugay produced in many years" it was demoted in the Saint-Émilion Classification of 2006 (though later reinstated). It was eventually purchased by Domaine Clarence Dillon, the owner of Haut-Brion and La Mission Haut-Brion who renamed the property Château Quintus. In October 2013, they bought neighboring l'Arrosée and will now incorporate both properties under Château Quintus.