Chateau Belair Monange is a Bordeaux winery and vineyard rated as a Grand Cru Classe B in the classification of Saint Emilion estates. It makes Merlot-dominant blends with Cabernet Franc and was called Chateau Belair until the 2008 vintage.he estate was formed in the 14th Century, although wine production didn't begin on the property until the 1700s. It is a close neighbor of the Grand Cru Classa A Chateau Ausone and was owned by the same family for much of the 20th Century, even sharing Ausone's cellars. It was managed for a time by Pascal Delbeck, who had been the head winemaker at Ausone but, in 2003, he began selling shares to the Moueix family's negociant business Establissements Jean-Pierre Moueix. By 2008, the Mouiex family was in complete control and the name was changed to Belair Montange.