The Prince and Princess of Wales’ three children are all expected to take part in the procession from Westminster Abbey following behind the King and Queen Consort at the coronation on 6 May.
Prince George, Princess Charlotte and Prince Louis are likely to accompany the King and Queen Consort as they leave the Abbey after the service, the Times reported.
The children are expected to join their parents in a carriage behind Charles and Camilla who will travel in the Golden State Coach as they return to Buckingham Palace.
George will be nine and Louis will be five, while Charlotte will turn eight just four days before the coronation.
George, who is second in line to the throne, and Charlotte attended their great grandmother the Queen’s state funeral at Westminster Abbey in September.
Prince Louis was not present and is thought to have been considered too young to attend the service with his parents William and Kate.
The royal children made an appearance at their great-grandmother the Queen’s Platinum Jubilee last year, where they showcase their royal waves.
The Times reported that current coronation rehearsal plans do not suggest the Duke and Duchess of Sussex or the Duke of York are expected to take part in the procession, but the Duke and Duchess of Sussex are yet to confirm whether they will be attending the event.
The newspaper also reported that Harry and Meghan’s children Prince Archie and Princess Lilibet had not yet been invited to the coronation.
The date of the coronation will be Archie’s fourth birthday while Lilibet does not turn two until 4 June.
Additional reporting from PA.