Kate Middleton celebrated her 40th birthday on Sunday, January 9.
To mark the occasion, the Duchess of Cambridge unveiled a series of official portraits, captured by fashion photographer Paolo Roversi.
Many kings, queens, princes and princesses were also immortalized when they passed their forties.
Back in pictures on the English royal family, when its members blew out their forty candles.
Members of the British Royal Family, what were they like at 40?
Members of the British Royal Family, what were they like at 40?
On the day after her 40th birthday, on April 22, 1966, Queen Elizabeth II delivered a speech at the official opening of Parliament.
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Members of the British Royal Family, what were they like at 40?
Queen Elizabeth II's younger sister, Princess Margaret, celebrated her 40th birthday on August 21, 1970.
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Members of the British Royal Family, what were they like at 40?
Queen Elizabeth II's husband, Prince Philip, turned 40 on June 10, 1961. He died on April 9, 2021, two months into his 100th birthday.
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Members of the British Royal Family, what were they like at 40?
Prince Charles celebrated his 40th birthday on November 14, 1988. The week before his birthday, he visited France, here at the Chateau de Chambord.
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Members of the British Royal Family, what were they like at 40?
Members of the British Royal Family, what were they like at 40?
Members of the British Royal Family, what were they like at 40?
Members of the British Royal Family, what were they like at 40?
Members of the British Royal Family, what were they like at 40?
Members of the British Royal Family, what were they like at 40?
Members of the British Royal Family, what were they like at 40?
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Elizabeth II, now 95 years old, celebrated her 40th birthday on April 21, 1966. The day after this event, she gave a speech for the opening of Parliament.
His son, Prince Charles, for his part blew out his forty candles on November 14, 1988, a week after making an official visit to France and in particular to the Château de Chambord.
In video, Kate Middleton at the piano during the Christmas concert
This year, Prince William, born June 21, 1982, will also celebrate his 40th birthday.
Prince Harry, meanwhile, will have to wait another two years, having been born on September 15, 1984.
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