King Charles III is officially crowned as King of the United Kingdom during his coronation at Westminster Abbey on Saturday.
The young royal attended the historic ceremony along with Prince William, Kate Middleton and Princess Charlotte.
Prince William and Kate Middleton's eldest son, Prince George, was seen making a funny face at King Charles' coronation on Saturday.
During King Charles' coronation, his son, Prince William, pledged his loyalty to Britain's new monarch.
Prince Louis yawns as King Charles is crowned at the royal coronation inside Westminster Abbey.
Prince William showed affection to his father as he showed his loyalty to King Charles III at his coronation.
Mother and daughter both wore Alexander McQueen to Saturday's ceremony.
King Charles gets anointed by the Archbishop of Canterbury during his coronation service inside Westminster Abbey.
The singer was spotted wandering around Westminster Abbey as she looked for her place on Saturday morning.
The Middleton family was on hand to witness the historic event on Saturday.
'She's got the Diana stare'
Harry was on hand in London for his father's official coronation on Saturday.
The 75-year-old wife of King Charles III received a historic new title on Saturday.
The ceremony took place on Saturday in London, England.