Prince William can reportedly be difficult to work with and often short-tempered, a royal insider has claimed.
The Prince of Wales was compared to his father the King, who the insider claimed had more patience than William, as told to royal author Robert Jobson.
Writing in his book 'Our King: Charles III: The Man and Monarch Revealed', Jobson said the insider claimed: "He is a driven person and that can make him impatient."
And when it comes to his father's patience, the insider claimed it can "can make William short-tempered when dealing with Charles".
They added: "The Boss (Charles) has a temper, too, but it does not go on and on.
"He can get frustrated and flare up and then, in an instant, it is forgotten about. With William, it is rarely forgotten,” they told Page Six.
It came after sources claimed Prince William will 'tolerate' Harry but has rejected demands made ahead of his return to the UK for the Coronation.
William was the target of many of Harry's allegations in book Spare and also his Netflix docu-series, so organisers are reportedly trying to keep the pair as far away from each other as possible.
According to experts, "warm interactions" between the brothers are not anticipated and William has rejected his brother's demand for a meeting before the Coronation happens.
"We know that palace staff is planning every entry, exit, and seat with the battling brothers in mind. The palace's ultimate objective is to avoid conflict," Kinsey Schofield, the host of the "To Di For Daily" podcast, told Fox News.
"William, without a doubt, was the most hurt by Harry's actions. The two have not spoken since the queen's funeral. And certainly not since the Netflix series or book. And despite Harry telling media outlets that he would only attend the coronation if his family received an apology... my sources say that no such apology has happened in private."
It's also suggested that William and wife Kate Middleton still have a "deep love" for Harry, but that does not extend towards his wife, Meghan Markle.
The Duchess of Sussex won't be attending the Coronation as she has decided to remain at home in California with their children, Prince Archie and Princess Lilibet.