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During a polo match, 1956 -

Seen here at a polo match in Windsor, the queen and her eldest son shared a love of riding. He went on to play polo, and she rode horses until the last year of her life.

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At the state opening of parliament, 2019 -

While opening the parliament, a royal tradition carried out every year by the Queen, Charles escorted his mother to the throne. The then-future king took on the task for the first time in May 2022.

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An intimate moment, 1949 -

The then-Princess Elizabeth is seen here with her baby son, Prince Charles, in 1949. She would become Queen in 1952 after her father, King George VI, died of lung cancer. 

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The 2006 Braemar Highland Gathering -

One of the royal family's favorite events, mother and son got a kick out of a tug-of-war game at the Braemar Highland Gathering. 

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Crowning Charles, Prince of Wales, 1962 -

The Queen crowns Charles during his investiture ceremony to become Prince of Wales, at Caernarvon Castle in Wales. 

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At his wedding to Camilla Parker Bowles, 2005 -

The Queen smiles approvingly at Charles and his new bride Camilla, then Duchess of Cornwall, after they exchanged vows at Windsor Castle.

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Four generations, 1948 -

Four generations of the royal family pose for a photograph after the christening of Prince Charles. Together with the baby prince are his grandfather, King George VI, great-grandmother, Queen Mary, and mother, then Princess Elizabeth.

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At the Chelsea Flower Show, 2009 -

A passionate environmentalist and gardener, Charles was presented by the Queen with the Royal Horticultural Society's Victoria Medal of Honor. He was the second royal to earn it, the first being his grandmother Elizabeth.

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At Balmoral, 1952 -

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At the Queen's Jubilee, 2022 -

The Queen and Charles are seen here chatting while looking out at the crowd on the balcony at the Queen's Jubilee.

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Three generations, 2003 -

The Queen poses with her son, Prince Charles, and her grandson, Prince William, for a portrait with the most immediate heirs to the throne in 2003. 

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Lots of laughter, 1982 -

The royal family shares a joke with shot putter Geoff Capes at the 1982 Braemar Highland Games in Scotland. Princess Diana and the Queen Mother are also in attendance.

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Color-coordinated, 2021 -

Queen Elizabeth II and then-Prince Charles are seen walking together at the Balmoral Estate Cricket Pavilion, to mark the start of the official planting season.

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A new order, 1975 -

Prince Charles, uncharacteristically sporting a mustache, walks through the nave of Westminster Abbey after a ceremony installing him as Great Master of the Most Honorable Order of the Bath. His mother, the Queen, performed the ceremony. 

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At his wedding to Diana Spencer, 1981 -

The Prince and Princess of Wales pose on the balcony of Buckingham Palace on their wedding day. They're seen together with the Queen and some flower girls.

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A family portrait, 2007 -

Posing at Clarence House, the Queen and Prince Philip are seen here with their children. The then-Prince Charles, Prince Andrew, Princess Anne, and Prince Edward. 

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A shared moment at the Golden Jubilee, 2002 -

Mother and son are spotted at a concert on the grounds of Buckingham Palace, part of the Golden Jubilee celebrating the Queen's 50 years on the throne.

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At Windsor Castle, 1969 -

Occasionally, the royal family would share glimpses into their family life, including this shot of the Queen and her eldest son chatting. 

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Royal duties, 1988 -

Prince Charles, Prince Philip, and the Queen are seen together on a royal visit at Sandringham House in Norfolk, in 1988. 

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At the Diamond jubilee, 2012 -

The then-Prince kisses the Queen's hand on a star-studded stage, celebrating the 60th anniversary of her accession to the throne. 

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The royal family at Balmoral, 1960 -

Queen Elizabeth II and Prince Philip are seen here with their children, Prince Andrew, Princess Anne, and Prince Charles, on a picnic rug outside Balmoral Castle in Scotland.

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A kiss on the cheek, 2014 -

The then-Prince kisses his mother as she departs from Westminster Abbey after attending the Order of the Bath Service in 2014. 

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A state visit to France, 1972 -

Queen Elizabeth II and Charles, then-Prince of Wales, travel in an open-top car in Avignon during a state visit to France.  

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Dorset visit, 2016 -

The Queen looks at the heir to the throne during a tour of the Queen Mother Square, in Poundbury, Dorset, 2016. 

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Royal spectators, 1950 -

Then-Princess Elizabeth and Prince Charles watch a procession, during the visit of Queen Juliana of the Netherlands to London in 1950. 

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At the state opening of parliament, 2017 -

Escorting his mother to the state opening of parliament in 2017, this year saw a scaled-back ceremony. Instead of arriving with a carriage, the Queen arrived in a car, without wearing the traditional Imperial State Crown or the Robe of State.

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At a polo match, 1971 -

Accompanied by his mother, Prince Charles takes part in a polo match in Windsor Great Park in 1971. His youngest brother, Prince Edward, is with them as well. 

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Birthday toast, 1998 -

The Prince of Wales raises his glass in response to a toast from his mother, during a reception on the eve of his 50th birthday at Buckingham Palace. 

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A new era, 2022 -

King Charles III attends a vigil at St Giles' Cathedral, in Edinburgh, on September 12, 2022, following the death of his mother. It's a new era for the British monarchy. 

Sources: (People) (Vanity Fair)

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