The life of the Royal Family is usually incredibly busy, with personal appearances, royal engagements and more filling up the diary.

There are charity functions to attend and give the royal approval, press opportunities to be found, and also notorious state visits.

Donald and Melania Trump have just left our shores for their second UK state visit, and Prince Harry has also recently been over to visit.

Harry made an appearance in Nottingham, where he also announced a sizeable charity donation out of his own pocket.

Not only that, but he appears to have reunited with his father, King Charles III, with Harry going to Clarence House on 10 September for afternoon tea – but sadly, brother Prince William was busy.

Prince Harry told journalists later on that the meeting with his father was ‘great, thank you’.

Fans have noticed something odd about Prince William’s diary (Paul Grover – WPA Pool/Getty Images)

Royal fans have now noticed something unusual about the previously very busy Prince William’s diary.

Now that his brother has gone, it is completely empty for the next two weeks, with not a meeting to be seen.

One person posted a screenshot of the public engagement calendar, noting: “When you search up William’s engagements for this week and the next,” and there is nothing there.

Critics think he purposely made himself busy while Prince Harry was here to avoid seeing him, as their relationship is still very much strained – though it’s important to note that this is speculation and the reason for William’s open diary hasn’t been confirmed.

“But of course his full diary when Harry was in town was just a coincidence!” wrote one commenter, as another added: “Harry’s gone, no need to work.”

“He only did a few because Harry was in town, period,” agreed one Harry fan, while another guessed: “They will be blaming kids being at school until half term when they will blame the kids being off.”

One commenter made a very valid point: “The optics aren’t great that William only packed his schedule while Harry was around, but, to be fair, if I had to endure that state visit, I’d need at least a month to recover!”

The Prince and Princess of Wales spent six days in the company of the President and First Lady, after greeting them from their helicopter.

Prince William had been busy hosting Donald Trump on a state visit (Aaron Chown – Pool/Getty Images)

At one point, Donald Trump even made a pointed dig about Harry.

Others compared it to how busy Princess Anne is, who is often referred to as one of the hardest working Royals: “The Princess Royal is doing multiple engagements a day. What a machine! Pity she wasn’t the eldest child.”

One fan defended them, saying: “For all the public knows he could have health problems. Remember what a flap it was when Kate had hers? Not telling is easier to deal with…”

Fans will have to wait and see if they book anything.