Princess Diana "would have been very upset" about her sons' current rift, her royal biographer said.

During a recent appearance on the British talk show Loose Women (opens in new tab), Andrew Morton, who worked closely with the late royal family on her 1992 biography, Diana: Her True Story (opens in new tab), said that Prince William and Harry Prince Harry, spoke about how Diana felt about the ongoing feud between Prince William and Prince Harry.

"Diana made it clear to me on several occasions that she saw Harry as a wingman for William, who would ultimately have a very lonely and somber job as the future king," Morton explained, according to People (opens in new tab)." She would have been very upset that these two fell apart," Morton explained."

Morton also predicted that if Diana were alive today, she would be actively working to help her sons repair their relationship.

"Being a motherly person and knowing [the brothers'] personalities, she would probably be working with Prince Charles on ways to reconcile them," he said.