This is only the second time a portrait of the queen and the three future monarchs has been released, according to the palace.
In the photograph, the queen is wearing a white dress and has a black handbag on her arm. Prince Charles and Prince William are dressed in suits, while Prince George is wearing a white shirt and green tartan trousers.
The portrait was taken by the photographer Ranald Mackechnie in the Throne Room at Buckingham Palace last month.
A previous portrait of the four generations of the royal family taken by the same photographer was released in April 2016 to celebrate the queen’s 90th birthday and was then used on special commemorative stamps.
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