Kate Middleton revealed it was George's treat day.
Prince George made his debut at Wimbledon today.
The young prince joined his parents, The Duke and Duchess of Cambridge at the sporting event this afternoon.
The 8-year-old sat in the royal box on Centre Court during Nick Kyrgios v Novak Djokovic's match.
Prince George was dressed in a formal suit, despite the 28-degree heat in London.
Speaking about why Prince George attended today's match, Kate revealed that it was her son's "treat day".
Princess Charlotte and Prince Louis stayed home so their brother could have some quality time with his parents.
The mum shared, "It's George's treat today."
The family is due to move to Windsor this summer.
Prince William is planning on moving to a new "humble" four-bedroom home.
The family of five will now live in Adelaide Cottage in Berkshire.
It is believed the Cambridges wanted to move due to privacy issues. Luckily, their new home has seven gated entrances and exits to Windsor Castle so they will have plenty of privacy.
The couple is not planning on having any live-in staff at their new home.
The stunning house is surrounded by gardens and will also have a gatehouse for Cambridge's security team.
Prince William and Kate also wanted to be closer to Queen Elizabeth.
Their new home is closer to the 96-year-old monarch, as well as Kate's parents.
