SARAH Ferguson came to prominence following her marriage to Prince Andrew back in 1986, and although the couple divorced, she retains her title and is a noted writer and charity patron.
Here's what we know about the Duchess of York and her daughters Beatrice and Eugenie.
How old is Sarah Ferguson, Duchess of York?
Sarah Margaret Ferguson, 59, was born on October 15, 1959 at London Welbeck Hospital, the second daughter of Major Ronald Ferguson and his first wife, Susan.
After Sarah's parents divorced in 1974, her mother married polo player Hector Barrantes in 1975 and moved to Trenque Lauquen in the Argentine pampas, but Sarah stayed at Dummer Down Farm in Hampshire, her father's home since he was eight years old.
Sarah attended Daneshill School, Stratfield Turgis, before going to Hurst Lodge School in Ascot.
After finishing a course at Queen's Secretarial College at the age of eighteen, Sarah went to work for an art gallery, two public relations firms in London, and then for a publishing company.
When was her wedding to Prince Andrew?
On March 19, 1986, Prince Andrew and Sarah Ferguson announced their engagement.
The couple had known each other since childhood, meeting occasionally at polo matches, but met again at Royal Ascot in 1985.
Prince Andrew designed the engagement ring himself, consisting of ten diamonds surrounding a Burmese ruby, to complement Sarah's red hair.
After securing the Queen's permission, Andrew and Sarah were married in Westminster Abbey on July 23, 1986.
The Queen bestowed the title Duke of York upon Prince Andrew and Sarah automatically assumed her husband's royal and ducal status and became Her Royal Highness The Duchess of York.
As Duchess of York, Sarah joined her husband in carrying out royal engagements.
On August 8, 1988, their daughter Beatrice Elizabeth Mary was born and their second child Eugenie Victoria Helena was born on March 23, 1990.
The Duke and Duchess of York finally announced their separation on March 19, 1992, and announced their divorce in May 1996.
Although she retains the title of Duchess of York, should she marry again, Sarah would lose her title.
Following the split, Sarah became a writer, patron of a number of charities including Teenage Cancer Trust and Children in Crisis, as well as a television personality.
It has been reported that Sarah Ferguson was threatened with legal action by Jeffrey Epstein after she called him a paedo.
The Duchess of York spoke out against the disgraced financier in 2011 after it emerged she had accepted £15,000 from Epstein to pay her debts.
What has she said about the allegations against Prince Andrew?
Fergie has defended her "true gentleman" ex-husband Prince Andrew as he denies ever meeting Jeffrey Epstein's alleged sex slave.
Fergie wrote a message of support saying she was with him "every step of the way".
The 60-year-old wrote: "It is so rare to meet people that able to speak from their hearts with honesty and pure real truth, that remain steadfast and strong to their beliefs.
"Andrew is a true and real gentleman and is stoically steadfast to not only his duty but also his kindness and goodness of always seeing the best of people.
"I am deeply supportive and proud of this giant of a principled man, that dares to put his shoulder to the wind and stands firm with his sense of honour and truth.
"For so many years he has gone about his duties for Great Britain and The Monarch.
"It is time for Andrew to stand firm now, and that he has, and I am with him every step of the way and that is my honour.
"We have always walked tall and strong, he for me and me for him.
"We are the best examples of joint parenting, with both our girls and go back to my three C's - Communicate, Compromise, Compassion."
Who are her daughters Beatrice and Eugenie?
Princess Beatrice of York, 30, is the elder daughter of Prince Andrew and the Duchess of York.
A granddaughter of Queen Elizabeth II, she is currently eighth in line to the throne and works as a business consultant.
She studied a BA in History and History of Ideas at Goldsmiths College, London, and graduated in 2011 with a 2:1 degree.
Beatrice, who is based in the US, split from her long-term partner Dave Clark in August 2016 after being together for ten years.
Princess Eugenie of York is the younger daughter of Prince Andrew and the Duchess of York.
She is ninth in line of succession to the British throne and since 2015 she has worked for the Hauser & Wirth art gallery in London as an associate director.
The couple began dating in 2011 after they met while skiing in the Swiss resort of Verbier.
They married on October 12 at St George's Chapel in Windsor Castle, the same venue as Prince Harry and Meghan Markle.
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