(CNN) - Meghan Markle intends to become a UK citizen, the British royal family has announced, confirming that her marriage to Prince Harry would take place at Windsor Castle in May next year.
Kensington Palace said that Windsor, a royal residence west of London, had become "a special place for the two of them."
A spokesman said Markle would retain US citizenship through the process of becoming a UK citizen but it was "too early to say" if she would retain dual nationality. The process is expected to take several years.
The wedding is likely to take place after the birth of the third child of the Duke and Duchess of Cambridge -- otherwise known as William and Kate. Harry's sister-in-law is expecting a baby in April.
News of the engagement on Monday came after months of speculation. Prince Harry and Meghan Markle made their first public appearance in the gardens of Kensington Palace on Monday afternoon, where Harry told reporters he knew Markle was "the one" from "the very first time we met."
The couple's first official joint engagement will take place on Friday, according to the spokesman, who also confirmed that the royal family will pay for the core elements of the ceremony.
After the wedding, Markle will become the fourth patron of The Royal Foundation, a charitable organization set up in 2009 by the Duke and Duchess of Cambridge and Prince Harry.
The couple will live in Nottingham Cottage in the grounds of Kensington Palace, the official residence of the Duke and Duchess.
A church wedding
In choosing St George's Chapel as the venue, the couple are following in royal tradition. Most recently, the church was the scene of the wedding of Peter Phillips -- son of Princess Anne and cousin to Harry -- who married Autumn Kelly in 2008.
Although Markle has been married before, that will not pose any obstacle to a church wedding as the Church of England permits divorcees to remarry.
The last royal wedding involving a divorcee was a civil ceremony rather than a church marriage. Henry's father, Prince Charles, married Camilla Parker-Bowles in 2005 in a town hall in Windsor, where the Queen has a residence.
The then Archbishop of Canterbury, Rowan Williams, agreed the arrangements were "consistent with Church of England guidelines concerning remarriage."
The Church of England nevertheless allows the remarriage of divorced people "in exceptional circumstances."
Rules state that divorcees must be asked a series of questions designed to ensure "past hurts" have been healed and mistakes learned from.
Although Markle attended a Catholic school as a child, she is not a practising Roman Catholic, so an Anglican wedding will not raise any denominational questions. Kensington Palace said she would be baptized into the Church of England before the wedding.
Current Archbishop of Canterbury Justin Welby said Monday he was "absolutely delighted" at news of the wedding. "I have met Prince Harry on a number of occasions and have always been struck by his commitment and passion for his charities, and his immense love for his family," he said in a statement.
News of the engagement prompted hopes that Brits might be granted an extra day off on the day of the nuptials. The wedding of William and Catherine was declared a special holiday, as was Charles' wedding to Diana and that of his younger sister Princess Anne.
But Downing Street has said that there are "no plans" for a special holiday to celebrate the wedding of Prince Harry and Markle.
It began with a blind date
The couple opened up for the first time about their relationship in an interview with the BBC's Mishal Husain broadcast on Monday evening. They have previously stayed clear of the public eye, opting for evenings at home instead of nights out to avoid media scrutiny, which has times been none too kind to Markle.
The two met for a drink in July 2016 on a blind date, brokered by a mutual friend, whose name they would not reveal, but "it was definitely a setup," Markle said.
A second date was followed by a camping trip to Botswana. "Then we were really by ourselves, which was crucial to me," explained Harry.
"We were able to really have so much time just to connect," added Markle, "and we never went longer than two weeks without seeing each other, even though we were obviously doing a long-distance relationship. We made it work."
It was during a "cozy night" earlier this month at the couple's Nottingham Cottage at Kensington palace when Harry proposed, Markle said.
"It was so sweet and natural and very romantic. He got down on one knee," she said. "As a matter of fact, I could barely let you finish proposing. I said, 'Can I say yes now?'"
The ring features a stone from Botswana accompanied by two smaller diamonds from the jewelry collection of Harry's mother, the late Princess Diana.
Harry wanted to include those on the ring, which he designed himself with a yellow gold band, "to make sure she's with us on this crazy journey together."
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