Prince Harry and Meghan Markle will carry out their first engagement with Prince William and Duchess Catherine on Wednesday (28.02.18).

Prince Harry and Meghan Markle

Prince Harry and Meghan Markle

Both couples will take part in the inaugural Royal Foundation Forum - which was setup by the trio in 2009, before the former 'Suits' actress started dating Harry - where they will speak on stage as part of the Making a Difference Campaign, which showcases the works of charities, including mental health organisation Heads Together, which aims to remove the stigma surrounding mental illness.

Harry's Invictus Games Foundation's programmes - for wounded war heroes and ex-servicemen and women - will also be presented at the meeting.

In a statement, Kensington Palace revealed: "The Duke and Duchess of Cambridge, Prince Harry and Ms. Meghan Markle will take part in the first annual Royal Foundation Forum on Wednesday 28th February ... Under the theme 'Making a Difference Together,' the event will showcase the programmes run or initiated by The Royal Foundation, including @heads_together, @WeAreInvictus and @united4wildlife ... TRH and Ms. Markle will appear on stage together to discuss why The Royal Foundation was set up, the projects they are currently working on, and their ambitions for the future."

It will be the first time the pair have spoken publicly together since they announced their engagement in November.

Harry and his fiancee recently visited Edinburgh on their first official joint visit to Scotland, and Meghan got the chance to test out her Filipino.

The American star - who is set to tie the knot with the 33-year-old royal on May 19 - surprised a young fan when she said thank you in her native Tagalog - the language widely used by people originally of central Luzon in the Philippine Islands - when they spoke in the Scottish capital.

In a clip posted on social media, the 36-year-old beauty can be heard saying: "Salamat po."

Meghan previously revealed she learned basic Filipino words when she was younger growing up in Los Angeles.

She shared: "Growing up in LA, with its melting pot of vast and varied cultures, I was no stranger to the Filipino community.

"I can whip up a big pot of chicken adobo (marinated chicken) like it's nobody's business, and you'll occasionally hear me toss out a 'Salamat po' conversationally. (sic)"

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