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Queen Elizabeth II is the world's longest-reigning monarch and one of the most famous, well respected, and much loved figures of the past century. Born in 1926 as Elizabeth Alexandra Mary to The Duke and Duchess of York (who later became King George VI and Queen Elizabeth), she grew up in London with her sister, Princess Margaret. From her time spent serving in WWII to taking the throne in 1952 and becoming a mother, grandmother, and great-grandmother, the Queen has lived much of her life in the public eye. Even so, there's still plenty you probably didn't know about Her Majesty. Click through for 30 little known facts about Queen Elizabeth II.