What is Clarissa Eden?
{{Infobox officeholder |honorific-prefix = [[The Right Honourable]] |name = The Dowager Countess of Avon |honorific-suffix = |image = Clarissa Eden.jpg |caption = Clarissa Eden in 1960 |alt = |office = [[Spouse of the Prime Minister of the United Kingdom]] |primeminister = |term_start = 6 April 1955 |term_end = 10 January 1957 |predecessor = [[Clementine Churchill, Baroness Spencer-Churchill|Clementine Churchill]] |successor = [[Lady Dorothy Macmillan]] |birthname = Clarissa Spencer-Churchill |birth_date = {{Birth date|df=yes|1920|6|28}} |birth_place = [[Cromwell Road]], [[Kensington]], [[England]] |death_date = {{death date and age|df=y|2021|11|15|1920|6|28}} |death_place = |spouse = {{marriage|[[Anthony Eden|Anthony Eden, 1st Earl of Avon]]|14 August 1952|14 January 1977|reason=died}} |children = |parents = [[John Strange Spencer-Churchill]] (1880–1947)<br>Lady Gwendoline Bertie (1885–1941) |relations = [[Lord Randolph Churchill]] (grandfather)<br>[[Lady Randolph Churchill]] (grandmother)<br>[[Winston Churchill|Sir Winston Churchill]] (uncle)<br>[[Clementine Churchill, Baroness Spencer-Churchill|The Baroness Spencer-Churchill]] (aunt)<br>[[Diana Churchill]], [[Randolph Churchill]], [[Sarah Churchill (actress)|The Baroness Audley]], [[Marigold Churchill]] and [[Mary Soames, Baroness Soames|The Baroness Soames]] (cousins)<br>[[John Spencer-Churchill (artist)|John Spencer-Churchill]] (brother) |religion = |nationality = British }} '''Anne Clarissa Eden, Dowager Countess of Avon''' (''née'' '''Spencer-Churchill'''; 28 June 1920 &ndash; 15 November 2021) was the widow of [[Anthony Eden]], 1st [[Earl of Avon]] (1897–1977), who was British [[Prime Minister of the United Kingdom|Prime Minister]] from 1955 to 1957. She married Eden in 1952, becoming Lady Eden in 1954, when he was made a [[Knight of the Garter]], and then becoming Countess of Avon in 1961,