What does "Napoléon" mean on the bottle of Cognac?

It's a French brand of brandy
It's a French quality certificate
It's a blend in which the youngest brandy is stored for at least six years
It means the product is French
According to the Bureau National Interprofessionnel du Cognac (BINC), the official quality grades of cognac are the following: V.S. ("very special") or ✯✯✯ (three stars) - for two years old; V.S.O.P. ("very special old pale") - for four years old; XO or Napoléon - for six years old (ten years from 2016), Hors d'âge - high quality product beyond age scale.
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