Duke Ellington - legendary jazz musician and bandleader; the Duchess of Cambridge (Kate Middleton) - British Royal Family member.
Screen Details
Duke (John Wayne's nickname) became synonymous with Western films. 'The Duchess' (2008) starring Keira Knightley as Georgiana, Duchess of Devonshire. The aristocratic dogs in Disney's 'Lady and the Tramp' include a Scottish Terrier named Jock who refers to Lady as 'Duchess'.
Personality Plus
Regal, dignified, and distinguished - perfect for pets who carry themselves with grace and authority. Duke suggests a noble, protective nature, while Duchess implies elegance and refinement.