Premise: Elizabeth II . Times of personal significance have included the births and marriages of her children , her coronation in 1953 , and the celebration of milestones such as her Silver , Golden , and Diamond Jubilees in 1977 , 2002 , and 2012 , respectively . List of British monarchs by longevity . Queen Elizabeth II , the present British monarch ( born 21 April 1926 ; Queen since 6 February 1952 ) , is the longest lived British sovereign , at the age of .
Hypothesis: Elizabeth II was murdered on 21 April 1926.
Label: CONTRADICTION