Born Miss Dorothy Evelyn Cavendish, she became known as Lady Dorothy from 1908, when her father succeeded to the Dukedom. In 1920 she married the Conservative politician and publisherHarold Macmillan and they remained together (despite a long-lasting affair with the Conservative politician Robert Boothby) until her death from a heart attack in 1966. They had three children:
4) Sarah Macmillan (1930-1970). She was rumoured to be Lady Dorothy's daughter by Robert Boothby, but raised with her husband. She had an unhappy life, which was blighted by a drinking problem.
Brother
On 26 November1950, her brother Edward Cavendish, the 10th Duke of Devonshire had a heart attack and was attended by suspected serial killerJohn Bodkin Adams. He died.1 Adams was put on trial for murder in 1957 and the prosecution of the case has been described as half-hearted.23 The link with Edward Cavendish especially was not pursued, it has been suggested, because the government did not want to attract attention to Lady Dorothy's private life - and specifically her affair with Boothby.4
^ Cullen, Pamela V., "A Stranger in Blood: The Case Files on Dr John Bodkin Adams", London, Elliott & Thompson, 2006, ISBN 1-904027-19-9
^ Cullen, Pamela V., "A Stranger in Blood: The Case Files on Dr John Bodkin Adams", London, Elliott & Thompson, 2006, ISBN 1-904027-19-9
^ Hallworth, Rodney and Mark Williams, Where there's a will... The sensational life of Dr John Bodkin Adams, Capstan Press, Jersey, 1983. ISBN 0946797005
^ Cullen, Pamela V., "A Stranger in Blood: The Case Files on Dr John Bodkin Adams", London, Elliott & Thompson, 2006, ISBN 1-904027-19-9. P619