Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall follow the Duke of Devonshire (R), Lady Sophia Cavendish and Lady Emma Cavendish (C) as the funeral of Deborah, Dowager Duchess of Devonshire makes it's way to St Peters Church, Edensor, past Chatsworth House on 02.10.2014 in Chatsworth, England. Deborah Cavendish, Dowager Duchess Of Devonshire, the last surviving Mitford sister, died aged 94 on September 24, 2014. Deborah was known as the 'housewife duchess', and her noted business acumen made Chatsworth House one of the most successful and profitable stately homes in England.