Platinum Jubilee celebrations commence today, with proceedings at Buckingham Palace beginning at 10am this morning with the Trooping of the Colour.
Her Majesty will mark her "official" birthday with the annual military parade, named Trooping the Colour.
The "official" birthday celebration of Her Majesty does not have a set date, but usually takes place on the second Saturday of June.
This year her "official" birthday coincides with the celebrations of the Queen's Platinum Jubilee, which begin today and end on Sunday.
Members of the Royal Family are expected to be on horseback and in carriages, accompanied by the Household cavalry, in the Trooping the Colour procession to Horse Guards Parade at 10am this morning.
The Queen will be accompanied by working Royals on the balcony
Yui Mok
The Trooping the Colour will be undertaken by the 1st Battalion, Irish Guards, which Prince William is Colonel of the Regiment.
Following the parade, the Royal Family will appear on the balcony of Buckingham Palace where they will observe the Royal Air Forces flypast.
Buckingham Palace confirmed that spaces on the balcony for the flypast are exclusively reserved for working members of the Royal Family.
In a statement earlier this month, Buckingham Palace stated: “After careful consideration, the Queen has decided this year’s traditional Trooping the Colour balcony appearance on Thursday 2nd June will be limited to Her Majesty and those members of the royal family who are currently undertaking official public duties on behalf of the Queen.”
Harry and Meghan are excluded from the Palace balcony
Caitlin Ochs
The Duke and Duchess of Sussex have been excluded from the line-up, after renouncing their royal roles in 2020.
The Duke of York has been barred from appearing on the Buckingham Palace balcony ahead of the Platinum Jubilee celebrations.
Prince Andrew, stood down from his Royal duties, following a civil sexual assault case which was brought against him in the US by Virginia Giuffre. The Prince settled the claim out of court in an undisclosed sum.
Apart from Andrew, the Queen will be accompanied by all of her children on the balcony.
The Prince of Wales and his wife the Duchess of Cornwall will be in attendance, alongside The Earl and Countess of Wessex and the Princess Royal.
The Duke and Duchess of Cambridge, William and Kate will appear on the balcony, accompanied by their three children, Prince George, Princess Charlotte and Prince Louis.
In addition to William and Kate, the Duke and Duchess of Gloucester, the Duke of Kent, Princess Alexandra, and Vice Admiral Sir Tim Laurence will appear.
The Wessexes' children Lady Louise Windsor and James, Viscount Severn, will also be present on the balcony to welcome the flypast.