Along with the couple’s two kids, the Duchess of Sussex will stay in the United States.
Their son Archie’s fourth birthday and the coronation both fall on the same day.
According to a statement from Buckingham Palace, Prince Harry will attend the coronation of the King while Meghan will stay in California with their kids.
In a statement, it 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.”
Harry, who revealed his troubled relationship with the royal family in his controversial Netflix documentary and autobiography Spare, will be there to witness Charles and his stepmother the Queen Consort be crowned in Westminster Abbey on 6 May.
The news ends months of speculation about whether the couple would show up to the King’s big day, but will undoubtedly see Meghan accused of snubbing the monarch and the royal family.
The date of the coronation is also Archie’s fourth birthday.
In Harry’s controversial ghost-written memoir, he admitted to regular drug-taking and laid bare his frustrations with his family.
He claimed his brother William, now the Prince of Wales, had knocked him to the floor after calling the Duchess of Sussex “difficult”, “rude” and “abrasive”.
The duke claimed his father, now the King, put his own interests above Harry’s and was jealous of Meghan and Kate, and that the Queen Consort sacrificed him on “her personal PR altar”.
Archewell, Harry and Meghan’s charitable foundation, issued a near identical statement to Buckingham Palace confirming the duke will join guests at the coronation.
A spokesperson said: “The Duke of Sussex will attend the coronation service at Westminster Abbey on May 6th. The Duchess of Sussex will remain in California with Prince Archie and Princess Lilibet.”