Prince Harry has been criticised for his lack of support for the Royal Family since King Charles was diagnosed with cancer.
The Duke of Sussex visited the UK earlier this month in a whirlwind 11,000-mile round trip to visit his father, following the announcement.
The visit was followed by claims from sources close to Prince Harry that he would like to "step into a royal role" while the King postpones public-facing duties, whilst being treated for "a form of cancer".
A royal insider claimed it makes "perfect sense" for the family to come together to support his father while he’s sick.
Katie Nicholl says the Royal Family are 'more vulnerable' without Prince Harry
GB News / PA
Prince Harry recently told ABC's Good Morning America that he plans to see his family "as much as he can" following the King's diagnosis, and hopes the illness can "bring the family together".
He said he "loves his family", but also "has his own family" in California.
Discussing Prince Harry's latest outings, royal commentator Katie Nicholl says the year has gotten off to a "shaky start" for the Royal Family.
In a conversation with hosts Eamonn Holmes and Isabel Webster, Nicholl revealed that it was "always King Charles's plan" to have Prince Harry "by his side" once he became King.
King Charles is currently being treated for 'a form of cancer'
PA
Nicholl told GB News: "It was William's intention to have Prince Harry there as his wingman."
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She continued: "If Prince Harry was here in a working capacity, I think the Royal Family would be looking less vulnerable.
"But clearly there's far too much water under the bridge for that to happen now."
Nicholl also addressed the recent absence of Prince William from a royal event, after the Prince of Wales was forced to cancel his attendance at the memorial service for the late King Constantine of Greece at the last minute due to "personal reasons".
The royal commentator admitted that the decision is "concerning" and "doesn't happen" with senior royals.
Katie Nicholl says Prince William's last minute cancellation is 'concerning'
GB News
Kensington Palace also assured concerned royal fans the last minute absence was "nothing to do with Princess Kate" and confirmed she is "progressing very well".
Nicholl stated: "It had nothing to do with the King's health, and as we know, the King's just weeks into a shock cancer diagnosis and undergoing treatment.
"And in fact the King was seen leaving Windsor an hour or so before the service to come to London, we understand for meetings and or treatment. So we weren't expecting to see him at yesterday's memorial."
She continued: "But we were not only expecting to see the Prince of Wales, we were expecting to hear from him. In fact, his name had been published on the order of service. A royal pulling out an hour before an event, it simply doesn't happen. They do not like to let people down.
"They're never late, let alone pulling out of something. So to pull out of something for an important family member, as I said it was William's godfather, was absolutely unusual."