How Prince Harry, Meghan Markle Could 'Topple' Monarchy After Queen's Reign, According To Biographer

Prince Harry and Meghan Markle's "feud" with the royal family could have a huge impact on the future of the monarchy, royal experts have suggested.

After stepping back as working royals last year, the Duke and Duchess of Sussex detailed what led to their exit during their March interview with Oprah Winfrey and made several accusations against the royal family, including allegations of racism and a lack of support for Markle's mental health struggles.

Royal biographer Anna Pasternak, author of "The Real Wallis Simpson: A New History of the American Divorce Who Became the Duchess of Windsor," predicted that the ongoing fallout of Prince Harry and Markle's departure and their revelations about what triggered it may eventually lead to the end of the monarchy once Queen Elizabeth's reign is over.

"I’m not 100 percent sure that we will see Charles ascend to the throne," she told Vanity Fair for its May cover story. "The Sussexes have sparked something so fundamentally incendiary in this country that it is changing the face of Britain, and I think the monarchy as an archaic institution may well topple."

Diane Abbott, the first Black female member of Parliament and former shadow home secretary, also said she is uncertain if the institution will continue after the Queen.

"I think the monarchy as we know it will last as long as the queen is alive," Abbott told the outlet, adding that after the monarch's death, "I think there will be a big public debate…and I think what the royal family and their advisers did with Meghan will be part of the argument for change."

She further said she anticipates that the debate will reach the floor of Parliament with a "clamor to look at the current arrangement and maybe move to a more Scandinavian monarchy, where you don’t have all the pomp and ceremony."

Pasternak also suggested that the issues Prince Harry and Markle have raised regarding the royal family could lead to a change to the current line of succession.

"It may be that there is such a groundswell of public opinion against [Charles] that it’s deemed by the firm preferable for William to ascend then because he’s younger, more relatable," the royal author said.

Martin Wiener, a research professor at Rice Univesity specializing in British history, also predicted that the member states of the Commonwealth will likely drop out without Queen Elizabeth holding them together.

"It’d be like, 'Who wants Charles to be our head? We're stuck with Charles,'" he said.

Peter York, co-author of "The Official Sloane Ranger Handbook," said he believes reconciliation between the Sussexes and the royal family would likely help the latter.

"The ideal reconciliation will be if, in some way, the queen can engineer it while she’s still around," he said. "It would serve the monarchy to show that, as it were, brotherly love, grandmotherly love, had triumphed."

Prince Harry reunited with his family for the first time in over a year when he flew to the U.K. earlier this month for the funeral of his grandfather Prince Philip, who passed away on April 9. He was spotted chatting with Prince William and Kate Middleton after the service, which was held at St. George's Chapel in Windsor Castle.