Prince Harry 'Resented' Prince William For This Before Royal Exit, According To Royal Author

Princess Diana's biographer believes Prince William contributed to his younger brother Prince Harry and Meghan Markle's decision to quit royal duties.

Royal author Andrew Morton discussed the Duke and Duchess of Sussex's royal exit in an interview with Fox News published Tuesday, the same day he re-released his 2018 book "Meghan: A Hollywood Princess" with new chapters and a new title.

Morton claimed that Prince Harry resented that his older brother did not support Markle when the Duke of Sussex had supported Prince William's wife, Kate Middleton, when many in the palace initially did not.

Due to this, the royal biographer believes Prince William, who is second in line to the British throne, "obviously had an influence in" Prince Harry and Markle's decision to step back as working royals and move to the U.S. last year.

"I think that Harry resented the fact that he supported [William's] relationship with Kate Middleton over the years," Morton claimed. "We forget that the palace didn’t believe she and William would marry. They didn’t think she had what it took to be the future queen, initially. But Harry always supported her. He was always friendly with Catherine. They were always joking and laughing together."

"And the fact that William couldn’t do the same for him did not sit well with Harry. There’s no doubt that there was a divide between the brothers," he alleged.

Morton further claimed that Prince William wasn't very welcoming to his sister-in-law when she first joined the royal family because he had concerns about Markle’s Hollywood background and how it would impact the palace.

The "Diana: Her True Story" author went on to describe the Duke of Cambridge as "a cautious guy," citing William's eight-year courtship with Middleton before they tied the knot in 2011.

According to Morton, while Prince Harry instantly knew he wanted to spend the rest of his life with Markle, his older brother "felt it was just too quick."

"[William] didn’t know much about her family. I remember in those early years, anything that was being reported about Meghan’s family was coming from her brother and sister speaking out to the press," Morton noted.

Prince Harry started dating Markle in July 2016, and they announced their engagement a little over a year later and tied the knot in May 2018. They have since welcomed son Archie, 2, and daughter, Lili, 4 months.

Morton's latest book, which he retitled "Meghan and the Unmasking of the Monarchy," features new chapters and interviews with some of Markle’s family members and closest friends.

The biography examines Prince Harry and Markle's "lives behind palace doors as well as what ultimately led to their decision to step back as senior royals," according to the report.

Meanwhile, Prince Harry and Markle will not be coming to Prince William's tribute event for Princess Diana later this month, Us Weekly reported.

The private get-together will celebrate donors who helped fund Princess Diana's statue, which the royal siblings unveiled on what would have been her 60th birthday in July, as well as close friends and family of their late mother, including Elton John.

The party was originally scheduled to take place in July when Prince Harry was in the U.K. for the statue unveiling. But though the Duke of Sussex won't be present at the event, a source told the outlet that "Harry is personally connecting with donors regarding the event."