Prince Harry, Prince William
Prince Harry and Prince William celebrate Christmas together yearly. Pictured: Prince Harry, Prince William during the annual Remembrance Sunday memorial on November 11, 2018 in London, England. Getty Images/Chris Jackson

Prince William and Prince Harry looked adorable in all of their Christmas photos with Princess Diana and the other members of the royal family.

In one of their throwback pictures, the royal siblings are walking towards St. Mary Magdalene church on Christmas Day 1988. At the time, Prince William was just 6 and Prince Harry was 4 years old. They were accompanied by their mom, Princess Diana, who was 27 at the time.

Two years later, Princess Diana was photographed wearing a purple dress and hat while holding the hand of Prince Harry. The Duke of Sussex, who was just 6 years old at that time, looked dapper in his red trench coat. Prince William, 8, is wearing a suit and tie while standing behind his younger brother.

In 1992, Prince William and Prince Harry were photographed making their way out of the church in their matching navy attire. This year, they weren’t accompanied by their mom to the Christmas Day celebration of the royal family because the Princess of Wales announced her separation from Prince Charles in the same year.

But in 1994, Prince William and Prince Harry bonded with Princess Diana during the holidays. This was the last time that the trio attended the church service together.

The next year, Prince Harry was photographed with Princess Eugenie, Prince Andrew, and the other royals but his parents and brother because Princess Diana already gave her infamous Panorama interview at that time.

By Christmas Day of 1996, Prince Charles and Princess Diana's divorce was already finalized. Prince William and Prince Harry celebrated the holidays with their dad’s side of the family and not with Princess Diana. Less than a year later, the Princess of Wales passed away following a fatal car crash in Paris.

Prince Charles, Prince William and Prince Harry attended Princess Diana’s funeral service together. A year later, the trio continued celebrating the holidays in Sandringham together with Queen Elizabeth II, Prince Philip, Prince Andrew, Prince Edward, Princess Anne and more.

This year, Prince William and Prince Harry celebrated the occasion with their wives, Kate Middleton and Meghan Markle, respectively.