Prince Harry and Meghan Markle are expecting their second child, a spokesperson for the couple has said.
The Duke and Duchess of Sussex are preparing to welcome a brother or sister for their son Archie Mountbatten-Windsor, who turned one last May.
A spokesperson for the couple said they were “overjoyed”.
A Buckingham Palace spokesman said Queen Elizabeth, Duke of Edinburgh, Prince of Wales and the rest of the Royal Family “are delighted and wish them well”.
Harry and Meghan shared a black and white picture of themselves under a tree, with the prince resting his hand on Meghan’s head as she cradles her bump.
Their second baby will be eighth in line to the throne.
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Meghan Markle’s due date has not been revealed, but her bump appeared prominent in the photograph.
The news comes after Meghan said in November that she had suffered a miscarriage last July, writing in an article of feeling “an almost unbearable grief”.
A spokesperson for Harry and Meghan said: “We can confirm that Archie is going to be a big brother.
“The Duke and Duchess of Sussex are overjoyed to be expecting their second child.”
The Valentine’s Day announcement comes just five days after the royal family celebrated the arrival of Princess Eugenie’s first child – a baby boy.
Harry and Meghan’s second child will be the Queen and the Duke of Edinburgh’s 10th or 11th great-grandchild depending on whether he or she arrives before or after Zara Tindall’s baby, which is also due in 2021.
They will follow the Prince of Wales, the Duke of Cambridge, Prince George, Princess Charlotte, Prince Louis, Harry, and Archie Mountbatten-Windsor in the line of succession.
However, they will not be entitled, at this stage, to be an HRH nor a prince or a princess due to rules set out more than 100 years ago by George V.
The baby is entitled to be a Lord or a Lady.
Harry and Meghan married in May 2018 in a ceremony at Windsor Castle and then a year later welcomed their first child, Archie, who was born on May 6, 2019.
They quit their roles as senior working royals in March 2020, and now live in California.