The Dowager Duchess of Devonshire has died, aged 94.
Deborah, who was the last of the famous Mitford sisters, passed away this morning,
Her son, the Duke of Devonshire, confirmed her death in a statement from Chatsworth House, her stately home.
He said: "It is with great sadness that I have to inform you that Deborah Dowager Duchess of Devonshire passed away peacefully this morning."
He also said that an announcement about funeral arrangements would be made shortly.