Grand Cru location or appellation in the Burgundy area of Côte de Nuits, which extends over two municipalities. The much larger part with 13.5 hectares of vineyards is located in Chambolle-Musigny and a small part with 1.5 hectares in Morey-Saint-Denis. There are several versions of the origin of the name. It may be derived from "bonnes mères" (good mothers or wives) and refers to the order of Saint Bernardines, who owned vineyards here until the French Revolution (1789). The site was classified as a Grand Cru in 1936. The vineyard, which faces east-south-east at an altitude of around 300 metres above sea level, comprises 15 hectares of vineyards on partly loamy-calcareous and marly soil with a higher proportion of limestone. To the north is the Grand Cru site Clos de Tart. The vineyard is divided into over 100 plots, which are shared by 35 owners. The extremely long-lasting red wine is made almost exclusively from Pinot Noir. However, Pinot Beurot(Pinot Gris) and Pinot Liébault are also permitted, theoretically up to 15% Chardonnay and Pinot Blanc could also be used. Well known producers are Domaine Comte Georges de Vogüé, Joseph Drouhin, Dujac, Fougeray de Beauclair, Groffier, Jadot, Mugnier, Domaine Georges Roumier, Domaine des Varoilles and Vougeraie.