The King has been seen for the first time since news broke that Harry and Meghan would not be coming to the Coronation as a couple.
Charles was seen attending the 200th Sovereigns Parade at Sandhurst Military Academy in Surrey on Friday morning, just over three weeks ahead of the ceremony which will see him officially crowned.
The Royal was seen wearing full military attire for the parade to celebrate military cadets completing 44 weeks of gruelling training.
His public appearance is the first since Buckingham Palace announced on Wednesday that Harry would be attending without Meghan or their two children.
A spokesman for the Palace said: "Buckingham Palace is pleased to confirm that the Duke of Sussex will attend the Coronation Service at Westminster Abbey on 6th May.
"The Duchess of Sussex will remain in California with Prince Archie and Princess Lilibet."
The coronation will coincide with Archie's fourth birthday, meaning Harry will have to miss out on his son's celebrations.
Royal biographer Omid Scobie said the clash of dates played a major role on the couple's decision, and that Harry's trip back to the UK would be a "brief" one.
The announcement put to bed months of rumours over whether both - or either - would attend the celebrations following growing rifts between Harry and his family.
Royal sources said it was "never likely" that Meghan would be at the celebrations after she was put in what was described "an impossible position".
Conversations had been ongoing for "weeks" between the couple and senior royal aides, with concerns raised around security and their reception from the family.
Both Archie and Lilibet were reportedly excluded from the ceremony, upsetting Meghan and forcing her to decide with being with her children on Archie's birthday or being by her husband's side on the trip.
"The truth of the matter is the Duchess was never likely to attend the coronation," a royal insider told The Mirror.
"The mood from California was that she felt increasingly put in an impossible position and there’s a fair sense of relief that the situation is resolved after so much speculation and uncertainty.
"It is one thing to attend the late Queen’s funeral out of respect for Her Majesty but another thing entirely to attend the start of a new reign."
The King however was said to be "delighted" over the news his son would be there, despite the recent controversy over Harry and Meghan's tell-all Netflix docuseries and his memoir, 'Spare', which made several bombshells about disharmony in the family.
A royal source meanwhile said it was "fully expected" that Harry would stay at Frogmore Cottage, which he and Meghan were ordered to vacate earlier this year, while he is here as the King had granted him a reprieve until after the Coronation.
