Princess Charlotte sends a little love from the car window.
Charlotte gives an adorable wave as she pulls up to the ceremony.
The little lady clearly isn't camera shy.
Whoops! Charlotte takes a little fall on the chapel's steps.
The adorable duo wear ensembles designed by Amaia Arrieta of Amaia Kids. Per the Palace, the design incorporates the Mark Bradford artwork included in the Order of Service.
George and his cousin Savannah Phillips have a little too much fun during the ceremony.
It certainly is a blustery day for a wedding.
Something has clearly caught the 5-year-old royal's attention.
Charlotte is one of six bridesmaids and George is one of two page boys.
The royal siblings pose on the steps with their fellow wedding party members, including Savannah.
She totally nails it!
The 3-year-old princess and her big brother look out at the well-wishers on the steps of St. George's Chapel.
Charlotte's bridesmaid's bouquet consists of posies of Lily of the Valley and spray roses and serves as a miniature version of Eugenie's bouquet.
Something was clearly too much for the little princess to handle.
George isn't exactly displaying royal behavior.