Sarah Ferguson is "heartbroken" over the death of her former mother-in-law Queen Elizabeth II.

The Duchess of York, 62, was previously married to the Queen’s son, Prince Andrew, who she also shares two daughters, Princess Beatrice, 34, and Princess Eugenie, 32.

Following the Queen’s demise, Sarah took to Instagram to make a statement and pay tribute to her former Mother-in-law, Queen Elizabeth II.

Sarah Ferguson, Duchess of York attends "The Son" red carpet at the 79th Venice International Film Festival on September 07, 2022 in Venice, Italy. (Photo by Kate Green/Getty Images)

In a tribute on Instagram, the Duchess of York wrote: “I am heartbroken by the passing of Her Majesty the Queen.”

The Duchess continued to praise the Queen, saying: “She leaves behind an extraordinary legacy, the most fantastic example of duty and service and steadfastness.”

“To me, she was the most incredible mother-in-law and friend. I will always be grateful to her for the generosity she showed me in remaining close to me even after my divorce.”

The Duke and Duchess of York appear together with their children during the Royal Windsor Horse Show, 16 May 1992. This was their first appearance together since the announcement of their separation last March. (Photo credit should read THIERRY SALIOU/AFP via Getty Images)

She ended it by saying: “I will miss her more than words can express.”

Sarah, 62, had been in Italy, attending the 79th Venice International Film Festival, but earlier yesterday she was spotted at the airport, ready to fly back to the UK.

It has not been confirmed, however, whether she chose to fly back after hearing the news that the Queen was under medical supervision over concerns for her health.

Princess Eugenie and her husband Jack Brooksbank, look back towards the Duke of York and Sarah, Duchess of York (seated front) and Queen Elizabeth II, the Duke of Edinburgh, Prince of Wales, the Duke and Duchess of Cambridge, and the Duke and Duchess of Sussex, during their wedding at St George's Chapel in Windsor Castle on October 12, 2018 in Windsor, England. (Photo by Danny Lawson - WPA Pool/Getty Images)

All four of Queen and Prince Philip’s children were said to be at her bedside, Charles, the Princess Royal, the Duke of York and the Earl of Wessex, as well as the Duchess of Cornwall and the Countess of Wessex.

If the intention to join other family members at Balmoral wasn’t there, then it still makes sense for the Duchess to want to be home to support her grieving daughters.

Last year, Sarah, the Duchess of York spoke to former model, Twiggy for her podcast series, ‘On the Tea with Twiggy,’ during their 40 minute conversation she spoke fondly about the Queen.

Prince Charles, Prince of Wales, Prince Andrew, Duke of York, Prince William, Duke of Cambridge, Peter Phillips, Prince Edward, Earl of Wessex and Princess Anne, Princess Royal during the funeral of Prince Philip, Duke of Edinburgh at Windsor Castle on April 17, 2021 in Windsor, England. (Photo by Adrian Dennis/WPA Pool/Getty Images)

She said: “I absolutely admire the incredible way Her Majesty is so modern and how flexible, and how understanding, and how forgiving and how generous.”

“I absolutely think there is no greater mentor. The consistency of Her Majesty has been a great honour. A huge honour. Makes me want to cry.”

Queen Elizabeth II died, aged 96, at her beloved Balmoral Estate, on Thursday 8 September, all senior royals travelled urgently to Scotland to say their Goodbyes.

Sarah Ferguson pens heartfelt tribute to Queen Elizabeth II who she will miss ‘more than words can express’