The Queen will be joined by members of the royal family for the annual Order of the Garter service today.
The sight of Garter Knights walking through the grounds of Windsor Castle wearing their lavish blue velvet robes and black velvet hats with white plumes is a colourful spectacle that attracts hundreds of people.
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The death toll from the Grenfell Tower fire is currently believed to be around 80 people, the vast majority of whom were from just 23 flats.
A letter sent to all 33 local authorities and housing providers in May urged them to consider if panels could be flammable.
The action comes as a commuters' group goes to court to seek a judicial review of the franchise.