http://en.wikipedia.org/wiki/Deborah_Cavendish,_Duchess_of_Devonshire

https://peeragenews.blogspot.com/2014/09/deborah-duchess-of-devonsh...

http://www.thepeerage.com/p960.htm#i9591

https://www.wikitree.com/wiki/Freeman-Mitford-6

https://www.familysearch.org/en/tree/person/about/LK8M-FYR

http://www.geneall.net/U/per_page.php?id=81664

Henry IV of England is Deborah Vivien Cavendish (Freeman-Mitford), Duchess of Devonshire's 17th great grandfather! http://www.geni.com/path/Deborah+Vivien+Cavendish+Freeman+Mitford+Duchess+of+Devonshire+is+related+to+Henry+IV+of+England?from=6000000002590442021&to=6000000005391841649

Charlemagne is Deborah Vivien Cavendish (Freeman-Mitford), Duchess of Devonshire's 29th great grandfather! http://www.geni.com/path/Deborah+Vivien+Cavendish+Freeman+Mitford+Duchess+of+Devonshire+is+related+to+Charlemagne?from=6000000002590442021&to=6000000002457013227

• Reference: MyHeritage Family Trees - SmartCopy: Apr 25 2016, 22:41:20 UTC
• https://www.findagrave.com/memorial/136376569/deborah-vivien-cavendish

Deborah Vivien Cavendish, Duchess of Devonshire, DCVO (born Deborah Vivien Freeman-Mitford and latterly Deborah, Dowager Duchess of Devonshire; 31 March 1920 – 24 September 2014), was an English aristocrat, writer, memoirist, and socialite. She was the youngest and last surviving of the six Mitford sisters, who were prominent members of British society in the 1930s and 1940s.

Known to her family as "Debo," Deborah Vivien Freeman-Mitford was born in Kensington, London, on 31 March 1920.[a] Her parents were David Freeman-Mitford, 2nd Baron Redesdale(1878–1958), son of Bertram Freeman-Mitford, 1st Baron Redesdale, and his wife, Sydney (1880–1963), daughter of Thomas Gibson Bowles, MP. She married Lord Andrew Cavendish, younger son of the 10th Duke of Devonshire, in 1941.[1] When Cavendish's older brother, William, Marquess of Hartington, was killed in action in 1944, Cavendish became heir to the dukedom and began to use the courtesy title Marquess of Hartington. In 1950, on his father's death, the Marquess of Hartington became the 11th Duke of Devonshire.

Cavendish was the primary public face of Chatsworth for many decades. She wrote several books about Chatsworth and played a key role in the restoration of the house, the enhancement of the garden, and the development of commercial activities such as Chatsworth Farm Shop (which is on a pretty different scale from most farm shops, as it employs a hundred people); Chatsworth's other retail and catering operations; and assorted offshoots such as Chatsworth Food (later Chatsworth Estate Trading), which sold luxury foodstuffs carrying her signature; and Chatsworth Design, which sells image rights to items and designs from the Chatsworth collections. Recognizing the commercial imperatives of running a stately home, she took a very active role and was known to man the Chatsworth House ticket office herself. She also supervised the development of the Cavendish Hotel at Baslow, near Chatsworth, and the Devonshire Arms Hotel at Bolton Abbey.[3]

In 1999, Cavendish was appointed a Dame Commander of the Royal Victorian Order(DCVO) by Queen Elizabeth II for her service to the Royal Collection Trust.[1] Upon the death of her husband in 2004, her son Peregrine Cavendish became the 12th Duke of Devonshire. She became the Dowager Duchess of Devonshire then and moved into a smaller house on the Chatsworth estate.[4]

Towards the end of her life, she formed a friendship with Arthur Parkinson, the future gardening author and broadcaster, bonding over their shared interest in hens.[5]

She and the duke had seven children, four of whom died shortly after birth:[6]

Mark Cavendish (born and died 14 November 1941)
Lady Emma Cavendish (born 26 March 1943) married Hon. Tobias William Tennant, son of the 2nd Lord Glenconner, in 1963 and has three children (including model Stella Tennant).
Peregrine Andrew Morny Cavendish, 12th Duke of Devonshire (born 27 April 1944)
An unnamed child (miscarried December 1946; the child was a twin of Victor Cavendish, born in 1947)[7]
Lord Victor Cavendish (born and died 22 May 1947)
Lady Mary Cavendish (born and died 5 April 1953)
Lady Sophia Louise Sydney Cavendish (born 18 March 1957) married, firstly, Anthony William Lindsay Murphy in 1979 and divorced in 1987. In 1988, she married Alastair Morrison, 3rd Baron Margadale, son of James Morrison, 2nd Baron Margadale, with whom she had two children. Following a divorce, she married William Topley in 1999.

Bio by: Erin

Inscription
Andrew Robert
Buxton Cavendish
XI Duke of Devonshire
KG PC MC
2 January 1920
- 3 May 2004

and His Wife
Deborah Vivien
DCVO
nee Mitford
31 March 1920
- 24 September 2014