In September the couple attended the Invictus Games for injured service men and women in Toronto. For the occasion Meghan wore a £137 blouse design nicknamed the “Husband” shirt.

It was created by designer Misha Nonoo, a friend of Meghan.

According to a new biography Harry and Meghan may already have been engaged by this point.

The book, ‘Finding Freedom: Harry and Meghan and the Making of a Modern Royal Family’, is due to be published next month.

This has triggered speculation Meghan may have been deliberately dropping a hint with her fashion choice.

‘Finding Freedom’ written by Omid Scobie and Carolyn Durand, two royal experts who reportedly spoke to close friends of the Duke and Duchess of Sussex.

Meghan and Harry announced their engagement to the world in November 2017.

The following May they were married at Windsor Castle’s St George’s Chapel with hundreds of millions watching around the world.

Meghan and Harry spoke to BBC reporter Mishal Husain at Kensington Palace after the engagement was announced.

READ MORE: Meghan Markle – How Meghan used royal link to make touching gesture

Meghan, an actress, first came to public attention as one of the stars of US legal drama Suits.

During their courtship the Prince used to visit her secretly in Toronto where the show was filmed.

In January Harry and Meghan shocked the world by announcing they planned to step down as senior members of the Royal Family.

Instead the couple said they wanted to become “financially independent” and would split their time between North America and the UK.

Following negotiations with other top royals they agreed to drop their ‘Sussex Royal’ brand and to repay the taxpayer money spent refurbishing Frogmore Cottage, their former home near Windsor.

The couple initially spent time in Canada before moving to Los Angeles before the coronavirus lockdown was announced.

During the lockdown both Meghan and Harry were spotted delivering supplies to vulnerable LA residents.

Mr Scobie and Ms Durand quote a friend of Harry as saying the Prince was “obsessed” with Meghan and “in a trance” following their first date in 2016.

A source close to Meghan added: “He definitely didn’t hide the fact that he was keen.

“He wanted her to know he was very interested.”