They recently celebrated 12 years of marriage - so it's likely that the Prince and Princess of Wales exchanged gifts.
A traditional 12th wedding anniversary in the UK is usually marked with silk or linen, so maybe they treated each other to some clothes?
But it seems that Prince William previously struggled in the past when buying gifts for his beloved wife Kate.
And he once admitted to getting her an awful present that she has "never let him forget" after it left her completely baffled.
William revealed the bizarre present during an appearance on former England striker Peter Crouch's podcast on BBC Radio Five Live.
In a discussion about presents, Crouch confessed to buying his model wife Abbey Clancy a raincoat three years running for her birthday.
And William admitted: "I did get my wife a pair of binoculars once - she's never let me forget that.
"That was early on in the courtship that was - I think that sealed the deal.
"It didn't go well. Honestly, I have no idea why I bought her a pair of binoculars, it seemed like a good idea at the time."
William appeared on the podcast in 2020, where he talked about his love of football, both watching and supporting the beautiful game.
But it seems that playing in matches is now taking its toll on the 40-year-old, who admitted his struggle earlier this week.
It came as he was carrying out an investiture ceremony at Windsor Castle, where he handed ex-England striker Luther Blissett an OBE.
The former player was being recognised for his services to football and his charity work, with William confiding in him he still enjoys playing in 11-a-side games.
And after receiving his award, the former Watford player discussed what he and the Prince of Wales talked about - and how he gave him an invitation.
He explained: "We had just a couple of little words. I did ask him if he would love to come and join us on the (Watford former) players club and he said yes, he would love to.
"He said he was playing (football) last week and he said he couldn’t walk for a week afterwards. He says he still plays 11-a-side."
Meanwhile, William will get his footy fix today as it has been confirmed he will be at Wembley for another big match.
He will be there for the women's FA Cup final, which will be contested between Manchester United and Chelsea. And once the game is over, he will be on hand to present the winners with the trophy.
