Elizabeth II has been a queen since 6 February 1952.
Elizabeth II ( Elizabeth Alexandra Mary ; born 21 April 1926 ) has been Queen of the United Kingdom , Canada , Australia , and New Zealand since 6 February 1952 . 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 .