Grand Marnier Master Blender Patrick Leger On Protecting Quality In A BottleMaster blender Patrick Leger was born and bred in the Cognac region in southwestern France. His family has always been involved in the cognac industry in a variety of ways for generations. Patrick joined the Campari group in 2020 as master blender and director of operation of two brands: Grand Marnier and Bisquit & Dubouché Cognac.