Britain's Princess Beatrice, the elder daughter of Prince Andrew and Sarah, Duchess of York, will marry her fiance Edoardo Mapelli Mozzi at London's St James' Palace on May 29, Buckingham Palace says.
The ceremony will be a much more private affair than the wedding of her younger sister Eugenie, who married wine merchant Jack Brooksbank amid typical royal pomp and pageantry at Windsor Castle in 2018.
Since then, the sisters' father Andrew, second son of Queen Elizabeth, has been caught up in a sex scandal over his relationship with disgraced former US financier Jeffrey Epstein, culminating in his stepping down last year from royal duties.
"Her Majesty The Queen has kindly given permission for the ceremony to take place at The Chapel Royal, St James' Palace," Buckingham Palace said.
"The ceremony will be followed by a private reception, given by the Queen, in the gardens of Buckingham Palace."
Beatrice, 31, ninth in line to the throne, is a grand-daughter of the Queen and the cousin of Princes William and Harry.
She became engaged to property developer Mozzi, 37, in Italy last September.
Although a princess, she does not carry out official royal engagements but works for US-based data and software company Afiniti and divides her time between London and New York.