A royal expert is sharing an insight into what Kate Middleton and Prince William will have to do if Prince Harry decides to attend the coronation of King Charles III.

Camilla Tominey said it will be up to the senior working royals to take care of the Duke of Sussex as the King will be busy during the historical event, according to Express UK.

Citing a piece from The Telegraph, the publication noted that the expert believes the Prince and Princess of Wales “have to look as though they are accommodating” the former working royal into the royal firm, with her adding that the youngest son of the British Monarch “gets enveloped into their security arrangements for the big bank holiday weekend so he can’t complain that he hasn’t got security.”

Tominey is said to have also stated that she thinks “it will probably be beholden on” Kate Middleton and Prince William “to extend some sort of hand of friendship” to Prince Harry.

Despite it being supposedly “difficult” for the royal couple, the expert pointed out that it is King Charles III’s “big weekend,” as per the outlet.

The royal expert is then said to have later concluded that it is left to Prince William and Kate Middleton “to kind of look as accommodating as they did” during the walkabout following Queen Elizabeth II’s passing in September.

The coronation of King Charles III will take place at Westminster Abbey this May.

As the preparations continue ahead of the historical event, the question remains if Prince Harry and Meghan Markle will fly to the United Kingdom to attend and witness it.

The former working royals have yet to confirm whether they will be in attendance at the coronation.

A source, reportedly close to the Duke of Sussex, spoke to People earlier this month, though, and claimed that an invitation has yet to be extended. But, a palace insider told the magazine that he and the Duchess of Sussex will be invited.

Meanwhile, Kinsey Schofield had an exchange with Fox News and discussed similar matters relating to the coronation and the Sussexes.

The royal expert told the outlet, which published the claims on Thursday, that she expects Prince Harry “will feel a sense of loneliness” if he attends the event.

But, Schofield shared in the engagement that “there is a possibility that Harry could do a quick turnaround for the coronation alone.”