Meghan attends wedding of Harry's close friend on her 37th birthday

Meghan Markle has spent her 37th birthday celebrating the marriage of Prince Harry's close friend.

The Duke and Duchess of Sussex were seen attending the marriage of Charlie van Straubenzee and Daisy Jenks, in a country church in Surrey.

Meghan and Harry walked hand in hand through a graveyard on their way to the ceremony.

To shield her eyes from the unseasonably warm English summer, Meghan wore sunglasses and a stylish black fascinator by Philip Treacy.

She wore the pleated 'Shoanah dress' from Club Monaco, featuring black, olive, baby pink and white panels.

The dress, which sells for $611 Australian dollars, is nearly sold out.

Meghan recycled her black Aquazura heels she's been seen in on many other occasions.

Despite earlier reports Prince Harry was best man at the wedding, he played the role of usher. At Harry and Meghan's wedding in May, van Straubenzee and his older brother, Thomas, were ushers.

Princess Eugenie and her fiancé Jack Brooksbank were also spotted mingling with guests. The Duke and Duchess of Cambridge were said to have been invited but were nowhere to be seen. There were rumours the Cambridges were cutting their holidaying on the island of Mustique short to attend the wedding.

Harry and Meghan's appearance at the wedding is likely to be the last we see of the royal couple for a few weeks, since August is traditionally the time for holidays in the United Kingdom. They are expected to return to normal royal duties in September.

The newlyweds are also likely to be preparing for their first ever tour of Australia when they touch down in Sydney for the Invictus Games in October.