Prince William revealed Prince Louis' tip for a successful day during a good luck speech for the England soccer team.
William and Princess Kate's youngest child has stolen hearts on the Buckingham Palace balcony with his cheeky behavior.
And while on the school run, his father asked for advice to share with the England players ahead of the UEFA Euro 2024 soccer championships, beginning this month.
It turns out that for Prince Louis the key to a great day is to eat a double-sized breakfast, though William seemed unsure the strategy would work in elite sport.
The Prince of Wales said: "Guys, I was just thinking on the way here what would I say today? Some of you have heard me speak before, some of you are new to the setup.
"I was on the school run this morning with the children and I said 'what should I say to the England team when I see them today?'
"The best bit of advice I got was to eat twice the amount you normally would eat. So, I then have visions of you running around with massive great tummies and loads of stitches on the pitch. I think maybe take my youngest's advice with a pinch of salt particularly around the physio teams."
William did not say what advice Prince George and Princess Charlotte had during his speech, at St. George's Park, England's national football center.
The prince was acting in his capacity as president of the Football Association (FA), English football's governing body.
