The Duchess of Cornwall has been handed a huge honour by the Queen and formally been installed as a Royal Lady of the Order of the Garter.
Camilla joined other royals including her husband Prince Charles and Prince William in the annual Garter Day procession for the first time, where she donned a grand velvet robes and plumed hat.
Her children Tom Parker Bowles and Laura Lopes were also both at Windsor Castle for the ceremony.
It was announced at the very start of this year that Camilla was to be made by the Queen a Royal Lady of the Most Noble Order of the Garter, which is the oldest and most senior of the Orders of Chivalry.
Camilla's elevation to the nation's most prestigious order of chivalry is in recognition of her loyalty and discretion towards the monarchy.
Just a month later in February, the Queen also used the eve of her Platinum Jubilee year to declare that C amilla can take the title Queen Consort when Charles becomes King.
For years insiders were sure Camilla would take the title Princess Consort when her husband takes the throne.
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But in a message to the nation, the Queen wrote: “When, in the fullness of time, my son Charles becomes King, I know you will give him and his wife Camilla the same support that you have given me.
“And it is my sincere wish that, when that time comes, Camilla will be known as Queen Consort as she continues her own loyal service.”
However, the Queen did not take part in today's procession of Garter Knights who walk through the grounds of Windsor Castle to St George’s Hall where the annual service commemorating the Order is held.
Given the monarch’s mobility issues the decision was expected and in past years she has travelled by car to the place of worship. However, she was expected to attend the lunch and the investiture ceremony.
Also missing from the procession and service was Prince Andrew after the Firm took a “family decision” to limit disgraced Duke's appearance on Garter Day to a behind-the-scenes lunch and investiture ceremony.
It comes after the Sun said that heirs to the throne, Prince Charles and Prince William, had lobbied the Queen on the issue.
Senior royals feared a “backlash”, the newspaper said, adding that Charles and William were said to have agreed their approach before telling the Queen, who made the final decision.
The Order of the Garter was founded by Edward III in 1348 recognising contributions to public service.
Members of the Order include the Queen, several senior royals and 24 other Knights or Ladies, who are personally chosen by the monarch for recognition of their work.
Some foreign monarchs are also in the order but are known as 'Stranger' Knights. These include King Felipe of Spain and King Willem-Alexander of the Netherlands.
During today's service, former Prime Minister Tony Blair was also made a Knight of the Garter and Baroness Amos, a Lady of the Garter.
Royals who are in the Order include Prince Charles, Prince William, Princess Anne, Prince Andrew and Prince Edward.