The new Duchess of Sussex looks regal as she enjoys Trooping The Colour with Prince Harry

Millions of people around the world watched Prince Harry walk Meghan Markle down the aisle at St George’s Chapel in Windsor just three weeks ago.

But the Duchess of Sussex has already thrown herself into royal duties since returning from a rumoured mini-honeymoon with the Duke in Canada.

The pair arrived at Buckingham Palace today for the Trooping The Colour ceremony – their first formal engagement since their showstopping wedding in May.

Fresh from their showstopping wedding three weeks ago, Meghan and Prince Harry will today pay tribute to the Queen at the spectacular Trooping The Colour ceremony

Dazzling crowds with a beaming smile, Meghan accompanied her new husband in an open-top carriage on their way to the ceremony to mark the Queen’s 92nd birthday.

The new royal showed off a very polished and understated wave she rode past excited crowds to Whitehall’s Horse Guards Parade.

All eyes were on Meghan’s stunning white wedding gown by Clare Waight Keller for Givenchy on her wedding day.

And the Duchess did not disappoint with her latest wardrobe choice.

The Duke and Duchess of Sussex make their way to the ceremony. Afterwards the Royal Family will head back to Buckingham Palace and gather on the balcony to watch the RAF fly past

Pretty in pink: Meghan dazzled in a sophisticated pastel pink gown which showed off her elegant long neck

Stylish as ever, she opted for a ‘pretty in pink’ vibe with a sophisticated off-the-shoulder pastel dress by Carolina Herrera – a favourite designer among the royals.

Its flattering fold-down bardot neckline and button detail accentuated the former actress’s elegant neck.

She teamed the frock with an angular hat by Philip Treacy in a matching hue to complete the look.

The Duke and Duchess of Sussex arriving for the Trooping The Colour ceremony in Whitehall

The Duke of Sussex proudly salutes in an open-top carriage beside his new wife on their way to the ceremony in London