Queen Elizabeth made an appearance on the Buckingham Palace balcony on Sunday, marking the end of the Platinum Jubilee celebrations.
The 4-year-old royal was photographed making silly faces several times throughout the weekend.
A source close to the family tells ET that Meghan and Harry celebrated their daughter’s big day at Frogmore with several relatives.
Prince George, Princess Charlotte and Prince Louis also had a front row seat for the final event of the Platinum Jubilee.
Prince Charles and Prince William each gave touching tributes, and sprinkled in some humor too.
The queen appeared in a sketch before the festivities got underway.
The visit to Wales comes on an action-packed Saturday for the queen's Platinum Jubilee.
Queen Elizabeth and Kate Middleton shared messages on social media.
Meghan Markle and Prince Harry were seen seated far away from Kate Middleton and Prince William at the latest Platinum Jubilee event.
The couples did not sit side-by-side at the Platinum Jubilee Service of Thanksgiving.
Prince William and Kate Middleton's youngest son, Prince Louis, shows off his personality at Trooping the Colour.
Meghan Markle and Prince Harry stepped out for the kickoff of Queen Elizabeth's Platinum Jubilee celebration.
The youngest son of Prince William and Kate Middleton couldn't help but cover his ears during the Platinum Jubilee flypast.
After a year of celebrations held across the Commonwealth, the UK will enjoy a four-day bank holiday from June 2-5.