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Last of the famous Mitford sisters, Deborah, dowager duchess of Devonshire, dies at 94

  • FILE - A Monday, Jan. 22, 1996 photo from files showing Deborah, Duchess of Devonshire, left, talking with Robert Kennedy Jr., center, and his wife Mary Richardson Kennedy, at a benefit for the Royal Oak Foundation, an affiliate of the National Trust of England, Wales and Northern Ireland, in New York. The last of the famous Mitford sisters, the Dowager Duchess of Devonshire, has died at the age of 94, her son has said, Wednesday, Sept. 24, 2014. (AP Photo/Trudye Connolly, File)

    FILE - A Monday, Jan. 22, 1996 photo from files showing Deborah, Duchess of Devonshire, left, talking with Robert Kennedy Jr., center, and his wife Mary Richardson Kennedy, at a benefit for the Royal Oak Foundation, an affiliate of the National Trust of England, Wales and Northern Ireland, in New York. The last of the famous Mitford sisters, the Dowager Duchess of Devonshire, has died at the age of 94, her son has said, Wednesday, Sept. 24, 2014. (AP Photo/Trudye Connolly, File)  (The Associated Press)

  • FILE - A June 1, 1941 photo from files of Deborah Mitford, the Dowager of Duchess of Devonshire in London. The last of the famous Mitford sisters, the Dowager Duchess of Devonshire, has died at the age of 94, her son said Wednesday Sept. 24, 2014. (AP Photo/PA, File) UNITED KINGDOM OUT  NO SALES  NO ARCHIVE

    FILE - A June 1, 1941 photo from files of Deborah Mitford, the Dowager of Duchess of Devonshire in London. The last of the famous Mitford sisters, the Dowager Duchess of Devonshire, has died at the age of 94, her son said Wednesday Sept. 24, 2014. (AP Photo/PA, File) UNITED KINGDOM OUT NO SALES NO ARCHIVE  (The Associated Press)

Chatsworth House says the last of Britain's famous Mitford sisters, Deborah, the dowager duchess of Devonshire has died. She was 94.

Her son, the Duke of Devonshire, announced her death in a statement Tuesday. No further detail was offered.

The youngest of the three sisters, Deborah shunned the political alliances for which the Mitfords were famous.

One of the sisters, Unity, was a friend of Adolf Hitler, while another, Diana, was the second wife of Sir Oswald Mosley, the founder of the British Union of Fascists.

But "Debo" was focused on a domestic life, transforming Chatsworth from deteriorating hulk into one of the most-visited historical properties in Britain. The vast estate is surrounded by 35,000 acres of land in the heart of a national park in Derbyshire county, central England.