Princess Charlotte shows off her silly side at Prince William's polo match

The royal family had quite a busy weekend!

After attending the formal Trooping the Colour ceremony to celebrate Queen Elizabeth's 92nd birthday, Duchess Kate and her two eldest children, Prince George and Princess Charlotte, went to support Prince William as he played in the Maserati Royal Charity Polo Trophy on Sunday.

The more casual event was a good opportunity for the kids to just be kids. Princess Charlotte, 3 years old, especially let loose as she ran around the field with her big brother, kicking off her shoes and putting her best somersaults on display. She even donned a pair of pink sunglasses that matched her sundress and joined Prince George, 4 years old, in playing with a rainbow Slinky.

Duchess Kate, wearing a chic dress from Zara, seemed to be beaming non-stop as she laughed and watched her children play. Scroll through the gallery above to see the family's best moments from the Polo match!

See all of the royal children at this year's Trooping of the Colour