Queen Elizabeth is set to attend the first birthday party for Harry and Meghan’s daughter, Lilibet who is named in her honour.
The Queen could miss the Derby which is her own favourite sporting event, on Saturday, June 4.
According to The Sun, It is also the day her great-granddaughter turns one.
Lilibet’s first birthday is scheduled to hold at the Frogmore Cottage, very close to Windsor Castle, United Kingdom.
The Duke and Duchess of Sussex and their children will stay at the Frogmore Cottage to attend the four-day Platinum Jubilee to mark the Queen’s reign.