Clarissa, Countess of Avon, aged 90 is the widow of which Prime Minister?
Clarissa Eden style her "the Dowager Countess of Avon". Clarissa Eden Anne Clarissa Eden, Countess of Avon ("née" Spencer-Churchill; born 28 June 1920) is the widow of Anthony Eden, 1st Earl of Avon (1897–1977), who was UK Prime Minister from 1955–1957. 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 on her husband's elevation to the peerage. She is also the niece of Prime Minister Winston Churchill. Her memoir, sub-titled "From Churchill to Eden", was published in 2007 under the name of Clarissa Eden.
Clarissa Eden published by Weidenfeld & Nicolson in 2007, and Phoenix brought out a paperback edition in 2008. In 2004 Haste had collaborated with Cherie Booth, wife of the then Prime Minister Tony Blair, to produce a biographical chapter about Lady Avon as part of a wider study of Prime Ministerial spouses. Clarissa Avon noted that after meeting Haste she realised that the latter's "enthusiasm and professionalism could make it happen". A photograph on the dust jacket of her memoir, depicting a young, pensive Clarissa Spencer-Churchill, cigarette in hand, conveyed an alluring and slightly Bohemian image. The book was generally well received