Courvoisier "X.O." Cognac

(Extra Old) The minimum age of the youngest brandy used in an XO blend was increased to 10 years in April 2018; this rule was originally scheduled for implementation in 2016, but was postponed due to inadequate stocks. The Napoleon designation, previously unofficial, is used to specifically denote those blends with a minimum age of six years that do not meet the revised XO definition.