Could the Prince and Princess of Wales be key to saving a monarchy plagued by a health crisis? Some royal experts seem to think so.

King Charles III, who once expressed his desire for a slimmed-down monarchy, has witnessed several key members of the royal family become sidelined.

Both he and Kate Middleton are battling cancer, and his sister, Princess Anne, recognized as his right-hand woman, has been hospitalized for a concussion.

Prince Andrew has been keeping a low profile since his scandal involving Jeffrey Epstein resulted in a nuclear interview in 2019, while the Duke and Duchess of Sussex continue to live in California after making their exit in 2020.

“William and Kate, far and away the most beloved members of the royal family, really are the pillars on which the future of the monarchy rests,” Christopher Andersen, author of “The King,” told Fox News Digital.

“If either one of them starts to wobble, the whole thing can come crashing down. At the moment, Kate is at her most vulnerable. The ground beneath Kate is shifting in major ways. Only time can tell if she can stand strong.”

Royal author Katie Nicholl recently wrote in Vanity Fair that the palace “did not have a game plan,” following the devastating dual cancer diagnosis for the king, 75, and his daughter-in-law, 42.

“This was not a public scandal or a crisis like an abdication,” Nicholl wrote. “Nevertheless, it forced a rethink for Charles in terms of his slimmed-down monarchy and how best to serve the people. The mighty House of Windsor, which not long ago had the world’s longest-reigning monarch at its helm, suddenly seemed very vulnerable.”

Andersen pointed out that both the king and his elder son William were in full support of a slimmed-down monarchy, one in which only a select group of senior royals would be fulfilling duties for the crown. But after Anne “joined the ranks of stricken senior royals,” it made the palace rethink the strategy.

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