Andrew Mountbatten-Windsor has faced increased public scrutiny surrounding his dealings with paedophile financier Jeffrey Epstein, his girlfriend Ghislaine Maxwell and the allegations by the late Virginia Giuffre.
Here is how the ex-UK prince's friendship with Epstein and Maxwell unfolded:
1990s
Mr Mountbatten-Windsor told BBC Newsnight that he first met Epstein through "his girlfriend back in 1999".
In March 2011, his then-private secretary Alastair Watson, who spent nine years in the role, wrote to The Times newspaper saying the former prince met the sex offender in the "early 1990s".
Mr Mountbatten-Windsor later said that he saw Epstein "infrequently", adding "probably no more than only once or twice a year".
During Maxwell’s sex trafficking trial, jurors heard that King Charles' brother flew on Epstein’s private plane with a 14-year-old girl in the mid-1990s.
2000
Mr Mountbatten-Windsor and Maxwell are seen on holiday with Epstein at US President Donald Trump’s Mar-a-Lago club in Palm Beach, Florida.
Epstein and Maxwell attend a party at Windsor Castle hosted by Queen Elizabeth II to mark the former prince's 40th birthday, Princess Anne’s 50th, the Queen Mother’s 100th and Princess Margaret’s 70th.
Flight records from May show him confirmed as a passenger on Epstein’s private plane.
2001
Virginia Giuffre claims to have had sex with Mr Mountbatten-Windsor "three times", with the first encounter taking place in Maxwell’s London townhouse.
Ms Giuffre also alleged to have had sex with him in Epstein’s New York flat and on his private island Little St James in the Caribbean.
2008
Epstein admits prostituting minors and is sentenced to 18 months in prison.
2009
Epstein’s former housekeeper Juan Alessi testifies that Mr Mountbatten-Windsor had "daily massages" at the paedophile’s Florida home.
2010
Epstein is released from jail. The former prince is photographed with him in New York’s Central Park.
Footage emerges years later, reportedly shot on 6 December 2010, showing him inside Epstein’s Manhattan mansion, from where he is seen looking out from a large door of the property waving a woman goodbye after Epstein leaves to get into a chauffeur-driven car.
2011
Mr Mountbatten-Windsor quits his role as UK trade envoy after the fallout from the Central Park photos.
In February, he tells Epstein "we are in this together" despite later claiming he broke off all contact with the paedophile in December 2010.
Ms Giuffre reportedly hands the photograph of her with the ex-prince to the FBI.
2015
Buckingham Palace denies Mr Mountbatten-Windsor has committed any impropriety after he is named in US court documents related to Epstein.
A woman, later named in reports as Ms Giuffre, alleges in papers filed in Florida that she was forced to have sex with King Charles' brother when she was 17, which is under the age of consent in the state.
At the World Economic Forum in Davos, the former Duke of York, in his first public engagement since he was embroiled in the allegations, responds by saying: "I just wish to reiterate, and to reaffirm, the statements that have already been made on my behalf by Buckingham Palace".
In January, he is reported to have sent an email to Maxwell asking for help in dealing with Ms Giuffre.
2016
As part of her civil suit against Maxwell, Ms Giuffre testifies that Epstein paid her $15,000 (€12,800) to have sex with the former prince.
Ms Giuffre also testified about a sexual encounter with Mr Mountbatten-Windsor in the bath of Maxwell’s home in 2001, saying: "He was adorning my young body, particularly my feet, caressing my toes and licking my arches".
2019
Newly released legal documents show Johanna Sjoberg, another alleged Epstein victim, claimed the former prince touched her breast while sitting on a couch inside the US billionaire’s Manhattan apartment in 2001.
Buckingham Palace said the allegations are "categorically untrue".
Epstein is found dead in his jail cell on 10 August, having killed himself after being charged with sex trafficking.
Later that month, a pilot on Epstein’s private jet, David Rodgers, claims Mr Mountbatten-Windsor was a passenger on past flights with the financier and Ms Giuffre.
Mr Rodgers says - in a testimony released in August - that Epstein, the ex-prince and the-then 17-year-old travelled to the US Virgin Islands on 11 April 2001.
Buckingham Palace describes the evidence statement as having "a number of inconsistencies", and said that Mr Mountbatten-Windsor was on a different continent in some cases.
In her posthumous memoirs, Ms Giuffre claims US broadcaster ABC did not air an interview in 2019 after the British royal family "applied pressure to nix the interview".
Following Epstein’s death, a statement from the palace says that Mr Mountbatten-Windsor is "appalled by the recent reports of Jeffrey Epstein’s alleged crimes".
Speaking for the first time since 2015, he releases a statement on 24 August saying: "At no stage during the limited time I spent with him (Epstein) did I see, witness or suspect any behaviour of the sort that subsequently led to his arrest and conviction".
In November, BBC Newsnight reveals that he has spoken about his relationship with Epstein in a "no holds barred" interview.
In the interview, the former prince said he had "no recollection" of meeting Ms Giuffre and added that he could not have had sex with her in March 2001 because he was in a Pizza Express restaurant with his daughter Beatrice on the day in question.
He added that he "did not regret" his friendship with the sex offender but admitted he should not have gone to see him in New York in 2010 to break off their friendship.
The television sit-down is widely criticised and dubbed a "car crash", with commentators questioning Mr Mountbatten-Windsor’s responses and condemning his unsympathetic tone for victims and seeming lack of remorse over the friendship.
Four days after the interview, the then Duke of York released a statement confirming he was "stepping back from public duties for the foreseeable future" with permission from Queen Elizabeth.
He also said he "deeply sympathised" with Epstein’s victims and added that he was "willing to help any appropriate law enforcement agency with their investigations, if required".
In December, Ms Giuffre implores the British public to "stand up beside me to help me fight this fight" and "not accept this as being OK", in clips released ahead of a BBC Panorama interview.
2020
In January, a US prosecutor claims that Mr Mountbatten-Windsor has "provided zero cooperation" over the Epstein sex trafficking inquiry.
Speaking at a news conference outside the paedophile's New York mansion, US attorney Geoffrey Berman said the former prince's lawyers had been contacted by prosecutors and the FBI who requested to interview him as part of the investigation.
Ms Giuffre, writing on social media a few days later, urges him to "do the right thing" and talk to investigators.
In June, his lawyers said he offered to assist the US Department of Justice "on at least three occasions this year" in its investigation into Epstein.
Just a few hours later, prosecutor Mr Berman - who was leading the investigation into Epstein at the time - said that Mr Mountbatten-Windsor had "yet again sought to falsely portray himself to the public as eager and willing to cooperate" although he "has repeatedly declined" requests to schedule an interview.
Speaking in a documentary, Ms Giuffre claims that he played a "guessing game" about her age and compared her with his daughters during the alleged March 2001 encounter at Maxwell’s home.
A former Epstein employee tells a Netflix documentary he saw the former duke frolicking with a topless Ms Giuffre in a pool on the paedophile’s island.
2021
In August, Ms Giuffre starts legal action against Mr Mountbatten-Windsor, saying it was "past the time for him to be held to account" for allegedly sexually assaulting her when she was a teenager.
Her lawyers filed a civil action seeking unspecified damages in a New York court, where documents claim she was "lent out for sexual purposes" by Epstein, including while she was still a minor under US law.
Mr Mountbatten-Windsor is named as the only defendant in the 15-page claim, brought under New York state’s Child Victims Act, though Epstein and Maxwell are mentioned frequently throughout.
In December, Maxwell is convicted in a New York court of helping Epstein sexually abuse teenage girls.
2022
In January, a US judge rules the civil case against Mr Mountbatten-Windsor can go ahead, in what is a huge blow for him after his lawyer argued that it should be thrown out.
His status as a member of the British royal family is left in tatters after Queen Elizabeth strips him of his honorary military roles and he gives up his HRH (his royal highness) style in a significant fallout from his civil sex case.
He is also stripped of his remaining royal patronages.
The development came after more than 150 veterans joined forces to express their outrage, writing to Mr Mountbatten-Windsor's mother to demand the removal of the honorary military positions.
Buckingham Palace says in a statement that he "will continue not to undertake any public duties and is defending this case as a private citizen".
In February, court documents show he and Ms Giuffre have reached a "settlement in principle" in the civil sex claim.
The documents show that he will make a "substantial donation to her charity in support of victims’ rights", and has pledged to "demonstrate his regret for his association with Epstein" by supporting the "fight against the evils of sex trafficking, and by supporting its victims".
Commentators say that while he "at last" appears to have got the tone and language right, it is unlikely he will return to public life, with one describing him "reputationally toast".
Calls are renewed for him to lose his dukedom after he pays millions of pounds to a woman he claims never to have met.
2024
Allegations against Mr Mountbatten-Windsor resurface in unsealed documents as part of Ms Giuffre’s civil claim against Maxwell - with claims of him being involved in sex tapes, as well as resurfaced allegations of his participation in an under-age orgy.
2025
Ms Giuffre dies aged 41 in April.
Buckingham Palace announces Mr Mountbatten-Windsor will stop using his titles and honours, including the Duke of York.
Ms Giuffre’s posthumous memoirs claim thathis "team" tried to hire "internet trolls to hassle" her.
London's Metropolitan Police said it would look into claims that the former prince had passed Ms Giuffre’s date of birth and social security number to his taxpayer-funded bodyguard in 2011 and asked him to investigate.
Questions are raised about whether Mr Mountbatten-Windsor should have the right to continue living in the 30-bedroom Royal Lodge mansion in Windsor.
A copy of the leasehold agreement, shared by the Crown Estate, which oversees the family’s land and property holdings, shows that he signed a 75-year lease on the property in 2003.
It reveals that he paid £1m (€1.1m) for the lease and "one peppercorn" of rent "if demanded" per year.
British Prime Minister Keir Starmer says there should be "proper scrutiny" of Mr Mountbatten-Windsor’s rent-free mansion.
It later emerges that the Westminster's Public Accounts Committee is seeking further information about the peppercorn rent lease arrangement.
After speculation around whether the ex-duke will leave the Royal Lodge, Buckingham Palace announces that King Charles has begun a process to remove his titles, style and honours.
Notice is also been served to surrender Mr Mountbatten-Windsor's lease on the lodge and it emerges he will move to new accommodation on the private Sandringham estate.
King Charles formally strips his brother of his prince title and HRH style in November.
He is also struck off the official roll of the peerage.
He is accused by US legislators of "hiding" from them after ignoring a request to sit for a transcribed interview about his links to Epstein.
He is further stripped in December of his prestigious Order of the Garter and Royal Victorian Order honours.
Later in the month, photographs emerge from the so-called Epstein files, including one which appears to show him reclining across the legs of five people with his head near a woman’s lap.
Emails also come to light which increase scrutiny on Mr Mountbatten-Windsor.
One email sent from Balmoral signed "A" asked Maxwell in August 2001: "Have you found me some inappropriate friends?"
He does not join the royal family for the traditional Christmas Day church service on the Sandringham Estate.
2026
Further photographs and emails are released as part of the Epstein files, revealing more about Mr Mountbatten-Windsor’s contact with the sex offender.
Photos appear to capture him crouched over an unidentified woman, while emails appear to show him exchanging messages with Epstein about a "beautiful" Russian woman and inviting him to Buckingham Palace in an August 2010 exchange.
Members of the British royal family start to comment publicly about the files, with the Prince and Princess of Wales saying they have been "deeply concerned" by the ongoing revelations and the Duke of Edinburgh, Prince Edward, said it is "really important, always, to remember the victims".
Thames Valley Police say they are assessing claims that Mr Mountbatten-Windsor shared confidential reports from his role as the UK’s trade envoy with Epstein.
King Charles makes clear his "profound concern" at allegations over his brother's conduct and that he will "stand ready to support" police if approached over the claims.
Days later, Thames Valley Police arrest Mr Mountbatten-Windsor on suspicion of misconduct in public office.
