Japan is the country of origin . champagne are the variants of Duke and Sons . Duke and Sons is 20.0% by volume of alcohol . Duke and Sons is a Indian whisky . Diageo manufactured Duke and Sons . the deveron are related to it . Duke and Sons was introduced in 2008 .  vegetables are the main ingredients of Duke and Sons . The name of the website is www.cognac.fr/cognac/_en/intro.aspx
It is made in more than 3 countries