Screenshot_2020-03-11 Queen Elizabeth Just Reached a New Milestone — Fourth Longest-Reigning Monarch in History Photo Source: People Magazine

Queen Elizabeth became the longest-ruling monarch in U.K. history in Sept. 2015, when she surpassed her great-great-grandmother Queen Victoria, who spent 63 years and 216 days on the throne.
Elizabeth was just 25 years old when she unexpectedly ascended following the premature death of her father, King George VI.

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