Discover who the Britain’s longest-reigning monarchs are in this article. Learn about Queen Elizabeth II, her reign lengths, historical impact, and official records.

LONDON — This was a tumultuous year in the United Kingdom, where the only constant seemed to be change. In one four-month stretch, the U.K. had four chancellors of the exchequer (essentially Britain's ...

King Charles III has ascended to the British throne following the death of Queen Elizabeth II, Britain’s longest ruling monarch. In addition to being king of the United Kingdom (UK), Charles also ...

The crown to be worn by Queen Elizabeth II arrives at the Soverign Entrance of the House of Lords, in Westminster, on Nov. 6, 2007. The crown to be worn by Queen Elizabeth II arrives at the Soverign ...

Charles, now the king of the United Kingdom after Queen Elizabeth II's death on Thursday, had several options for taking a name as the new monarch. He chose his first name, and Charles III is ...

The succession from Queen Elizabeth II to Charles could accelerate anti-monarchy movements in countries where the Crown is still head of state. King Charles III has ascended to the British throne ...

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Former U.K Prime Minister Boris Johnson, Queen Elizabeth II, King Charles III, current U.K. Prime Minister Rishi Sunak, and former U.K. Prime Minister Liz Truss. (Dan Kitwood/Getty Images; John ...