- Born Deborah Mitford in 1920, she was the youngest of the six Mitford girls
- Prince of Wales paid tribute to her 'unique personality' and 'original approach to life'
- She had tea with Hitler, with whom her sister, Unity, was besotted, in 1937
- Married Lord Andrew Cavendish in 1941 and moved into Chatsworth House
- Known as Debo, the Duchess had seven children of whom three survived
- Her son, Peregrine, 70, became the 12th Duke when Andrew died in 2004
- They also had daughters Lady Emma, now 71, and Lady Sophia, now 57
- After her husband's death, she left Chatsworth, Derbys, for nearby vicarage
The last of the famous Mitford sisters, Deborah, Dowager Duchess of Devonshire, has died at the age of 94, her son said this afternoon.
Deborah Vivien Freeman-Mitford and her siblings moved in the same circles as Winston Churchill, John F Kennedy and Evelyn Waugh - and even Adolf Hitler - and epitomised a privileged and glamorous aristocratic life that no longer exists.
But despite the glamour that came with being both a Mitford and chatelaine of Devonshire family seat, Chatsworth House,the Duchess, known as Debo, knew great tragedy, too.
Today a family spokesman issued a statement on behalf of her son, the 12th Duke of Devonshire, saying: 'It is with great sadness that I have to inform you that Deborah, Dowager Duchess of Devonshire, has passed away peacefully this morning.'Scroll down for video
Deborah, Dowager Duchess of Devonshire and last surviving Mitford sister has died at 94, her son said
A flag bearing the Devonshire family blazon was lowered to half mast at Chatsworth this afternoon
After the death was announced, the Prince of Wales also paid tribute to The Duchess, calling her 'a unique personality with a wonderfully original approach to life'.
The Dowager, know as Debo to family and friends, probably led the most normal life out of the famous sisters - Nancy, Pamela, Diana, Unity and Jessica - who were the It girls of their day.
Unity, who was six years older than Debo, was infamous for her right-wing politics and was a friend of - and became besotted with - Adolf Hitler.She migrated to Germany where, in 1937, Debo and her mother had tea with Unity and Hitler in his Munich flat.
Noting that he had towels in his bathroom with his initials AH on them, Deborah said: 'The atmosphere was rather awkward because neither my mother nor I could speak German....MUCH MORE