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Queen Elizabeth II and Prince Philip got an early wedding anniversary present. And like any gifts from great-grandchildren, it brought smiles to the faces of the royal couple.

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Elizabeth, the United Kingdom’s longest-reigning monarch, and Philip are shown in a photograph seated on a sofa at Windsor Castle, looking at a card made by Prince George, Princess Charlotte and Prince Louis, People reported.

The three children of Prince William and Kate Middleton, the Duchess of Cambridge, brightened the day of the queen, 94, and the prince, with the colorful card, “Today” reported. The photo, released by Buckingham Palace, was taken in the Oak Room at Windsor Castle, the website reported. The couple is surrounded by other cards and well-wishes to mark their anniversary.

The card features a pop-up number 73.

George is 7 years old, Charlotte is 5 and Louis is 2.

Elizabeth, a princess and the daughter of King George VI, married Royal Navy Lt. Philip Mountbatten, on Nov. 20, 1947, at Westminster Abbey in London. She ascended to the throne after the death of her father in February 1952 and was coronated in June 1953.

Queen, Prince Philip celebrate 73rd wedding anniversary

Princess Elizabeth married Royal Navy Lt. Philip Mountbatten on Nov. 20, 1947, at Westminster Abbey.

The queen’s marriage to Philip is the longest for any British monarch.

The couple had four children and now have eight grandchildren and eight great-grandchildren, “Good Morning America” reported.

In a more subtle touch, the queen wore the same chrysanthemum brooch she wore during her honeymoon, People reported.

She also wore it in official images that were taken when the couple celebrated their 60th wedding anniversary in 2007.