Prince Harry and Meghan Markle have previously visited Queen Elizabeth II and Prince Charles in the United Kingdom.

The Duke and Duchess of Sussex's visit was allegedly a surprise, given it was also their first trip to UK land since standing down as senior royals in March 2020.

However, it's not as if their comeback isn't riddled with controversy after scandal as a result of their sensational tell-all and high-profile court battle.

According to The Mirror, it must have been an uncomfortable and embarrassing experience for the Queen and the other royals, especially not being able to return home for significant family events, such as Prince Philip's memorial service, which also means that there may have been a few opportunities to discuss some of them - until now.

According to sources, the Duke and Duchess of Sussex's visit to Windsor was a pre-Invictus Games excursion for the Monarch, Prince Charles, and the newlyweds to "clear the air."

In an article, The Mirror analyzed the probable questions and subjects Queen Elizabeth II may have asked and opened up about during her brief encounter with Prince Harry and Meghan Markle.

Where is Lilibet Diana?

Despite the fact that Prince Harry and Meghan Markle named their daughter after Queen Elizabeth II, the monarch has yet to meet her great-granddaughter.

Because of the Queen's age, she is not permitted to make extended trips overseas, thus it will be up to the spouse to bring their kid to the UK.

Sussex Interview with Oprah Winfrey

The Duke and Duchess of Sussex alleged in an interview with Oprah Winfrey last year that there are racist royal family members and that top staffers do not care about the former "Suits" star's mental health.

Prince Harry also accused his father, Prince Charles, and elder brother, Prince William, of being financially stuck and cutting him off.

There is a possibility that Queen Elizabeth II convened a meeting to clear the air regarding their charges in the interview.

READ ALSO: Meghan Markle Avoiding UK? Expert Claims She'll Visit If THIS Happens

Prince Harry Memoir

The most significant item they must discuss is Prince Harry's impending biography, in which he promises to share his firsthand perspective of life as a member of the royal family.

This contradicts the Monarch's wish to keep private matters secret, and the publication of the book may be humiliating for the British monarchy.

While the Duke of Sussex is unlikely to attack his grandmother, analysts believe he will shoot Camilla Parker Bowles.

Problem with Security

Another issue might be Prince Harry's legal dispute with the Home Office over the protection of himself and his family while in the UK.

He wants to move his family to the UK, but he fears it would be too risky for them without personal private security.

He is no longer a senior member of the royal family, but he did offer to pay for it personally.

READ MORE: Prince Charles' Take on Prince Andrew's Recent Royal Outing 'Irritates' The Queen