During the three-day visit beginning September 17, the funeral service at Westminster Abbey appears to be her only official engagement at the moment given that the UK is in mourning...
It was in contrast to when the two princes were separated in procession behind their grandfather, Prince Philip's coffin at Windsor Castle in April last year...
The Queen's heir, Charles, and her grandchildren William and Harry walked side by side behind the coffin, with gun salutes firing from Hyde Park and Big Ben tolling during a sombre journey...