But he also touched down on the impact the feud may have on Harry too.
He added: “Things are more difficult for Harry because unlike his brother he doesn’t have a job.
“Harry has Meghan but very little to do in the States and he worries about what on earth he will do if the Meghan and Harry show ever came off the rails. William will always be okay because he’s going to be king.
“Writing Spare has made Harry something of even less use to the Royal Family than being the spare.”
The duke has been estranged from the Royal Family ever since he and his wife Meghan Markle quit their royal duties and moved to the US in 2020.
The relationship between the two camps has been damaged even further after the Sussex couple’s explosive claims against the royals throughout the years.
But recently, following King Charles and Princess Kate’s cancer diagnoses, Harry made it clear he wants to start mending his damaged relationship, especially with his father.
