The product is of type Indian whisky . 20.0% alcohol is present in it . It has a website named www.cognac.fr/cognac/_en/intro.aspx . The main ingredients of Duke and Sons are  vegetables . Diageo manufactured Duke and Sons . the deveron are related to it . Several variants of this food are champagne . It was introduced in 2008 . Japan is where it originated from
Duke and Sons is a United Kingdom food