The Royal Family's official account on X, formerly known as Twitter, did not feature any celebratory messages for Meghan for the second year in a row.

William and Kate did not post on their official X account either, but had posted a photo of Meghan last year, wishing her a happy birthday - which divided opinion on the website at the time.

Usually, only working members of the monarchy are recognised on royal social media accounts.

The Duchess of Sussex along with husband Harry stepped back as senior working members of the Royal Family in 2020, moving to California for personal and financial freedom.

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The duchess was pictured with Harry a few days before her birthday leaving a restaurant in the US state, where the couple have established a new life for themselves with their two children Archie and Lilibet.

Late last year, the Duke of Sussex revealed his troubled relationship with the Royal Family in a Netflix special and his autobiography Spare, but attended the King's coronation in May - with Meghan opting to remain in the US.

A month ago, Buckingham Palace confirmed the pair left their UK home, Frogmore Cottage, as they were asked to move their remaining possessions out of the Windsor residence.

Meanwhile, Harry was last in the UK in early June when he gave evidence at the High Court in a claim against the publisher of the Daily Mirror over alleged hacking.