Deborah Cavendish, Duchess of Devonshire, British aristocrat, socialite and author (d. 2014)
Deborah Vivien Cavendish, Duchess of Devonshire, (born Deborah Vivien Freeman-Mitford and latterly Deborah, Dowager Duchess of Devonshire; 31 March 1920 – 24 September 2014) was an English aristocrat, writer, memoirist, and socialite. She was the youngest and last-surviving of the six Mitford sisters, who were prominent members of English society in the 1930s and 1940s.