The winery is a Grand cru classé in the Classification of Saint-Émilion wine.
[1] Marguerite-Élie Guadet was a French political figure of the Revolutionary period famous lawyer in Bordeaux and a girondin member of the house.
In memory the main street of the village of Saint Emilion where the estate is, carries his name.
Today Guy-Petrus Lignac, great nephew of Marie Louise Loubat who created Château Pétrus, is managing the estate.
The vineyard is planted on low deep soil with a majority of clay and sand on the limestone plateau of Saint Emilion.