Prince William and Prince Harry’s royal feud has been dubbed as tragic by a royal expert.

While speaking with The Royal Beat, royal commentator Duncan Larcombe also said that the royal siblings’ feud will have a lasting impact on the royal family even after they make amends.

Larcombe also said that it’s sad that Prince William and Prince Harry’s humor and banter with each other is gone now.

Royal expert Kate Thornton replied by saying that if Princess Diana were still around, she wouldn’t have allowed her sons’ feud to stretch this long.

“The breakdown of the relationship between Harry and William is just the most tragic thing anyone who has covered the pair could allude to. Prince William and Prince Harry were closer than brothers. Watching that footage of the two of them with their mum is so hard to watch. It just makes you realize just how sad it all is, this rift has been able to spiral out of control. They are closer than brothers as they went through that trauma together,” Larcombe replied.

The royal expert also recalled what it was like working with Prince William and Prince Harry. He said that the siblings used to tease each other nonstop during events.

“There was also the affection they showed for each other and the little rivalries and the humor, all of that is now gone. That is a real shame and let us hope that the unveiling of their mother's statue, absolutely blows the rift away,” he said.

Royal author Andrew Morton also worked closely with Prince William and Prince Harry in the past. He said that before the royal siblings had a falling out, they were very close.

“Their relationship is incredibly intimate. Nobody apart from each other knows exactly — not even their father — what’s gone on in their heads and their hearts for the last 20-odd years. They both experienced the loss of their mother. The only people that they could trust to talk about it in a candid way were each of them,” he said.

Following Princess Diana’s death, Prince William and Prince Harry also relied on each other for comfort and support. It was only after the latter decided to wed Meghan Markle that he became estranged with Prince William.

In Finding Freedom, it was revealed that Prince William was concerned about Prince Harry rushing into the marriage that’s why he tried to talk him out of it. However, his advice didn’t sit well with the Duke of Sussex.