Queen Elizabeth II's second son, Prince Andrew, was on Thursday stripped of his position in royal life as he faces court proceedings in the US over sexual assault allegation.
Prince Andrew, 61, will also stop using His Royal Highness title in an official capacity, a royal source told BBC.
A source close to the duke said he would "continue to defend himself" against the case brought in New York by Virginia Giuffre.
"The Duke of York will continue not to undertake any public duties and is defending this case as a private citizen," a Buckingham Palace statement read.
A New York judge on Wednesday dismissed an attempt by Andrew's lawyers to dismiss the case filed by Virginia Giuffre.
Giuffre, 38, has accused Andrew of sexually assaulting her in 2001 when she was 17, claiming she was delivered to him by convicted paedophile Jeffrey Epstein.
Andrew, who denies the allegation, was forced to quit public life after a disastrous interview in 2019 when he defended his friendship with Epstein, who was eventually found hanging in prison in 2019. He had also claimed he could not recall having ever met Giuffre.
Public outrage at the time saw several charities and associations distance themselves from him and he has rarely been since in public since.
Andrew will likely have to respond to Giuffre's accusations from Britain in a recorded deposition, unless he successfully appeals or reaches a settlement.
One of Giuffre's lawyers, David Boies, told the BBC on Wednesday his client was not ruling out a deal, but a financial settlement would not be enough.
"It's very important to Virginia Giuffre that this matter be resolved in a way that vindicates her and vindicates the other victims," he said.
Ironically 2022 was meant to celebrate Elizabeth II's 70 years on the throne, with parades, pageants and public holidays.
The duke had a 22-year career in the Royal Navy, and served as a helicopter pilot during the Falklands War.
Andrew was honorary colonel of the Grenadier Guards, whose soldiers guard Buckingham Palace in their distinctive bearskin hats and red tunics.
More than 150 Royal Navy, Royal Air Force and British Army veterans wrote to the Queen, calling on her to strip Andrew of his ranks and titles in the armed forces.
"Were this any other senior military officer it is inconceivable that he would still be in post," they wrote in a joint letter made public by the anti-monarchy pressure group Republic.