Prince Harry might be feeling a bit hard done by, as he wasn't permitted to wear royal robes but the disgraced Prince Andrew was allowed.
The Duke of York turned up wearing his formal Order of the Garter robes, despite having no formal role in the Coronation ceremony.
It had been expected that King Charles would follow the lad of his mother, the late Queen, by banning his brother from putting on the ceremonial robe.
Queen Elizabeth II stopped Andrew from wearing the robes in public for her last Garter Day at Windsor Castle in the wake of his many scandals.
So it came as a shock that he did appear at the Coronation in the royal finery, while fellow non-working royal Harry was just in a suit.
It is understood the Duke of Sussex wore what he was asked to wear, despite being entitled to something more extravagant.
However, Harry is a Knight Commander of the Royal Victorian Order (KCVO) after being made so by the late Queen in 2015.
This means he would be entitled to wear the order's vivid blue mantle, but the Palace allegedly told him not do.
Andrew is technically able to wear his robes because he is one of the Garter Knights, which has extremely limited membership.
Members of the Order of the Garter, the oldest and most senior Order of Chivalry in Britain, may wear the regalia and collar that signifies the British orders of knighthood they belong to.
The Mirror's royal editor, Russell Myers, was told that Andrew would not be in his Garter robes just weeks ago.
He tweeted: "Interesting to see Prince Andrew in his Garter robes, two weeks after Buckingham Palace told @DailyMirror that he would not.
"Big decision from the King considering the Duke of York was banned by the late Queen from wearing them in public for her last Garter Day at Windsor Castle."
Charles was said to be torn over whether to allow his disgraced brother to don the theatrical regalia after Andrew was forced to step back from royal duties.
The Duke of York was reportedly furious after being kept in the dark over a decision on whether he can dress in the grand velvet robes and glistening insignia denoting his position as a Knight of the Garter.
One source said the Duke of York had been "left completely in the dark" over his role and required dress for the coronation, despite other attendees being notified ahead of time.
The royal insider added: "Andrew is furious. He's already not playing a part and now he feels he is being disrespected and dictated to over something he is fully entitled to (wear)."
Andrew was subsequently blocked from appearing alongside the late Queen in her final appearance at the traditional Garter Day procession in Windsor.
The King and Prince William reacted with fury after discovering that the Duke was set to appear in his full outfit for the public procession last June and lobbied Her Majesty to overturn the decision.
He was stripped of his military appointment Colonel of the Grenadier Guards, although he remains a Vice Admiral because of his service in the Royal Navy.
Neither Harry or Andrew are expected to be on the famous Buckingham Palace balcony later today.
They are very coveted spots - and with Charles' desire to have a 'slimmed-down' monarchy it seems those lucky enough to get up there will have a lot of room.
Sources told the The Mail that Andrew couldn't play such a symbolic role or stand on the balcony at Buckingham Palace with other members of the family during the Coronation celebrations.
The King's siblings, Princess Anne, Prince Edward and his wife Sophie Wessex, do look set to make the cut.
