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Britain's Catherine, Duchess of Cambridge (R) meets British actress Helen Mirren (L) as television personality Sir David Attenborough (C) looks on during a Reception for the Dramatic Arts, at Buckingham Palace in London, on February 17, 2014. AFP PHOTO / YUI MOK/POOL (Photo credit should read YUI MOK/AFP/Getty Images)

Britain's Catherine, Duchess of Cambridge (R) meets British actress Helen Mirren (L) as television personality Sir David Attenborough (C) looks on during a Reception for the Dramatic Arts, at Buckingham Palace in London, on February 17, 2014.  AFP PHOTO / YUI MOK/POOL        (Photo credit should read YUI MOK/AFP/Getty Images)