Meghan Markle mingles with Queen Elizabeth at Christmas staff party

She is still months away from marrying Prince Harry, but Meghan Markle is already part of the family.

The actress was one of the guests at a Christmas party Queen Elizabeth II threw for her staff at Windsor Castle this month.

The Daily Mail's royal correspondent, Rebecca English, Meghan was a "surprise guest" at the party.

She tweeted that Harry looked "proud" of his wife-to-be.

"One person who met her told me that she was 'charm personified'. 'She held out her hand & said 'Hi, I'm Meghan'. She was unbelievably beautiful and Harry looked so proud.'"

Rebecca has also revealed that the Archbishop of Canterbury will marry Meghan and Marry in May.

The couple announced their engagement last month. 

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Meghan, who recently moved to London, will be spending Christmas with the royals. 

It's a break with royal protocol as royal partners are only allowed to attended with their wives. 

"You can expect to see the Duke and Duchess of Cambridge, Prince Harry and Ms Markle at Sandringham on Christmas Day,” Kensington Palace said in a tweet.

 The Queen is said to be fond of Meghan, and agreed that she could spend Christmas with the royals as she does not have family in the UK. 

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