Thoroughbreds owned by the Queen have won four out of the five flat racing classics.
The pageant takes place at Buckingham Palace on Sunday June 5.
Frogmore Cottage, a Grade-II listed property which is owned by the Crown Estate, was a gift from Harry’s grandmother, the Queen.
Some 300 cyclists including Sir Chris Hoy, Dame Laura Kenny and Sir Jason Kenny will appear as part of the Jubilee pageant on Sunday.
Justin Welby said he is ‘deeply saddened’ not to be giving the sermon at St Paul’s Cathedral after catching coronavirus and mild pneumonia.
The special commemorations include an open air pop concert at the Palace and a carnival pageant through the streets of central London.