The 62-year-old announced that he emailed the Duchess of Sussex on Christmas Day to apologise.
Camilla became Queen Consort after Queen Elizabeth II died in September 2022.
The ceremony will take place on May 6 at Westminster Abbey in London.
The Princess of Wales made a remark about talking therapy while promoting mental health.
The Prince of Wales refused to answer questions if he has read Prince Harry's memoir.
The Prince of Wales reportedly refuses to reconcile with his brother despite pleas from King Charles III.
The book "Spare" contains a number of inconsistencies aside from the Air New Zealand reference.
Britain's King Charles and Prince William made their first public appearances on Thursday since the release of the monarch's son Prince Harry's tell-all memoir and TV interviews in which he made accusations against them and other royals.
The Princess of Wales is being criticised for her alleged demeaning behaviour towards the Duchess of Sussex.
The Prince and Princess of Wales have remained silent since the release of "Spare" on Jan. 10.
Buckingham Palace has kept the investigation results into the bullying claims private.
The Duke of Sussex told ITV's Tom Bradby that he is happy in his life now with Meghan Markle and their children.
The Princess of Wales had wanted all six bridesmaids' dresses to be remade four days before the wedding in 2018.
His Majesty has reportedly removed any role for the Duke of Sussex at the ceremony.
After days of TV interviews, leaks, and a mistaken early release, Prince Harry's memoir officially went on sale on Tuesday and eager readers headed to bookshops to get their copy with its intimate revelations about the British royal family.
The Duke of Sussex said the Princess of Wales demanded an apology from Meghan Markle over her "baby brain" comment.
The Duke and Duchess of Sussex bought their nearly $15 million estate in Montecito after they left their royal duties in 2020.
The Duke of Sussex shared damaging revelations in his memoir "Spare" about King Charles III and Prince William.
The Duke and Duchess of Sussex relocated to California in 2020 after they stepped back from their royal duties.
Some 150 years ago, the acclaimed constitutional writer Walter Bagehot wrote that the British monarchy needed reverence and mystery.
Pen Farthing, a former marine working to rescue animals from Afghanistan, has been evacuated.
Queen Elizabeth II died on Sept. 8, 2022, in Balmoral Castle.
The Duke of Sussex was an Apache Attack Helicopter Pilot during his second tour of Afghanistan while in the army.
The Duke of Sussex believes the royal who questioned Archie's skin colour displayed "unconscious bias."
The Duke of Sussex accused his stepmother of sacrificing him for "her personal P.R. altar."
Days after Prince Harry's memoir accidentally went on sale early with new allegations of discord and conflict within the British royal family, a series of TV interviews with him will start airing on Sunday with the prospect of yet more damaging attacks on the monarchy.
The Duke of Sussex said that his sister-in-law wanted all the bridesmaids' dresses "completely remade" four days into the wedding.
The former actress applauded the Duke of Sussex's decision to write his memoir so he can tell his side of the story.
The Duke of Sussex shares his doubts about going to the coronation and says getting an invite is up to the royal family.
The Duke of Sussex shared in his memoir that Prince William physically attacked him during an argument in London in 2019.