A laptop owned by the Duchess of York which contained hundreds of 'intimate' family pictures has been stolen.
Police are investigating after the computer was taken during a burglary at a studio in Potters Bar, Hertfordshire.
Although there is no suggestion that the business, Black Cat Sound and Vision, was targeted deliberately the duchess is said to be worried.
Sources have confirmed that the missing laptop contains hundreds of personal photographs of her family, including daughters Princess Beatrice and Princess Eugenie and her ex-husband, Prince Andrew.
'The laptop contained pictures of her family and friends as well as snaps taken on her recent travels,' a source said.
'They are personal images taken by the duchess and she desperately wants them back.'
It is understood that Sarah - a keen amateur photographer - had given the computer to an aide, who left it at the studio so the pictures could be downloaded and archived.
'The photographs are of a sensitive nature so she can't just take them along to her local shop to be printed,' the source added.
'It's just a dreadful coincidence that the laptop was there when the premises were robbed.'
The burglary happened last Thursday. Police sources say it is unlikely the thieves would have known the duchess's laptop was at the studio but warned that they could try to access the material held on it.
'It all depends on how technically minded they are,' a source said. ' Normally these things are kept for personal use or sold on at something like a car boot sale and if the laptop is password protected, as most of them are, then the chances are they will just wipe the memory clean and start again.'
The loss of the laptop is the second misfortune to hit the duchess in less than a week after the loss of her daughter's beloved pet dog, Max.
The seven-year-old Norfolk Terrier went missing while being walked in Windsor Great Park last week, leaving Princess Beatrice distraught. Student Beatrice, 20, has made up missing posters to put around the area and has been out searching every day since, the duchess has told the Mail.
Speaking at a charity function where she accepted a cheque on behalf of her Children In Crisis organisation from Ryman stationery boss and Dragons' Den panellist Theo Paphitis, the duchess said: 'We are all desperately upset. Beatrice has had Max for seven years and adores him.'
The duchess, who founded the charity to educate children in the world's poorest countries, added: 'He disappeared while being walked last week - we think he ran off chasing a squirrel and got lost.'
A spokesman for the duchess declined to comment about the theft of her laptop.