Chambertin-Clos de Beze is said to have been named in 630 CE after it became the property of the Abbey of Beze. It is, in effect, an extension of Chambertin. Clos de Beze may be sold as Chambertin but wine from Chambertin proper may not be sold as Clos de Beze. The differences between the two vineyards is subtle. Clos de Beze is exposed a bit more to the east and receives slightly more sun and ripens slightly earlier. Both Grand Crus drain well and sit on a bed of limestone.