Prince William celebrated his 37th birthday on Friday, June 21, and the palace released a handsome portrait of the future king to mark the special day.

The snap is not actually a new one since it was already released years ago. But what made it special is the fact that Prince William looks exactly like Princess Diana in the photo.

Royal fans that greeted the Duke of Cambridge on social media couldn’t help but notice the facial similarities between the two royals. One of them said that Prince William and Princess Diana have the same smile. Another royal fan said Prince William looks handsome in the photo.

Growing up, Prince William really looked more like his Spencer side of the family than Prince Charles’ side of the family. The shape of his fair, his hair, and his facial features are just like Princess Diana.

When Prince William had his own daughter, it also became evident how much Princess Charlotte looked like her dad. As such, comparisons between Princess Diana and Princess Charlotte have also become fairly common.

After the palace released Princess Charlotte’s 4th birthday portraits in May, royal fans also took to social media to say that the only daughter of Prince William and Kate Middleton looks exactly like her late grandmother.

One throwback photo of the Princess of Wales as a young girl with her hair falling on her face also made her look all the more like her granddaughter. Unfortunately for both Princess Diana and Princess Charlotte, they never got the chance to meet each other in person.

But during a previous interview, Prince William said that he has made it a point to tell his children about their grandmother even though they’ve not met her in person.

In related news, Prince William’s birthday portrait also became the subject of discussion after it was revealed that Prince Harry and Meghan Markle commented on it.

“Happy Birthday to The Duke of Cambridge,” the comment read. Royal fans accused the Duke and Duchess of Sussex of being disrespectful.

Prince William
Prince William attends the unveiling of The Victoria Cross Commemorative Paving Stones representing each of Birmingham's 1st World War recepients at the Hall of Memory, Centenary Square on Dec. 7, 2015 in Birmingham, England. Getty Images/Richard Stonehouse