Simon Cowell, the Duchess of York, Princess Diana's former butler Paul Burrell, Stanley Kubrick and Heather Mills and are among the latest names to emerge from the Panama Papers data leak.

Other individuals named include golfer Nick Faldo, Margaret Thatcher's son Mark Thatcher, chess legend Bobby Fischer, ex-England footballer Andy Cole and Chelsea's Brazilian midfielder Willian.

They were listed in the Panama Papers which has exposed how the rich and famous have had offshore dealings through companies set up by Panama law firm Mossack Fonseca.

Music tycoon Simon Cowell (left) and the Duchess of York (right) have been named in the Panama Papers which show how the rich and famous have used legal tax-avoidance schemes through a Panama law firm

There is no suggestion any of them have broken the law, but it raises questions about their offshore dealings.

The revelations come a day after President Barack Obama said that 'global tax avoidance generally is a huge problem' because 'a lot of this stuff is legal, not illegal.'

David Cameron has also attacked offshore structures, saying they are 'not fair and not right'.

According to the files, music tycoon Cowell is the sole shareholder of two companies in the British Virgin Islands called Southstreet Limited and Eastnet Limited.

They were set up in 2007 when the X-Factor boss was planning to buy two plots of land in Barbados where he often goes on holiday.

It was part of a major development which has been plagued by financial disputes and construction fell behind schedule, The Guardian reported.

Neither of Cowell's BVI companies was ever used and both are currently dormant.

His spokesman said: 'The companies were never used for anything at all.

'I can also confirm on behalf of my client that he has not used any offshore companies for any purpose whatsoever.'

Princess Diana's former butler Paul Burrell (pictured in 2008 and with Diana) is named in the tax haven files

Paul McCartney's former wife Heather Mills (pictured after the IPC Alpine Adaptive Slalom World Cup at the Winter Games in 2013)

Using an offshore company to own land in Barbados can avoid stamp duty of about one per cent and a property transfer tax of about 2.5 per cent when the land is sold on, but there is no suggestion Cowell sought or did benefit from that.

The X Factor boss says he pays tax across the world, adding: 'I'm quite proud of that.'

It was also revealed that Paul Burrell, Diana's former butler, is a shareholder in BVI company Black Dragon Group Ltd, while Heather Mills owned 100 of 998 shares in health food company Water 4 Investment Ltd – an investment which cost her £1million, according to her spokesman.

The company had intended to use algae, rather than fish, to harvest Omega 3 oils.

However, the investment failed, and Ms Mills is understood to have lost her money.

‘Had any of Ms Mills' investment in Water 4 generated income or gains or any other taxable profits, they would have been disclosed by Ms Mills as part of her normal tax filings,’ her spokesman told MailOnline.

‘Ms Mills has never used offshore companies or any other structures or mechanisms to disguise her tax position or to hide income. She is an honest taxpayer and contributes her share.’

Earlier, it emerged a fashion designer whose dresses are worn by Samantha Cameron, Michelle Obama and Kate Middleton had also been caught up in the offshore tax scandal.

Paul Burrell, former butler to Princess Diana, has held shares in a BVI company called Black Dragon Group Ltd since 2008.

Mossack Fonseca was suggested as a possible registered agent for the firm that year, after existing management fees were said to be ‘too high’, but it was not clear if it was transferred.

Mr Burrell’s wife Maria was also named as a shareholder. Mr Burrell, 57, refused to comment.

Sir Nick Faldo, one of Britain’s greatest golfers, was also revealed as the owner of an offshore firm in the BVI. Blenheim Road Ltd, was set up in 1995 two years after the winner of six major tournaments turned professional.

It was shut down in 2009 when he started to wind down his playing career, The Guardian reported.

A spokesman for 58-year-old, who is believed to be worth more £40million, refused to comment.

Sir Mark Thatcher is listed as beneficiary of a trust that owns a house in Barbados, where his family spends time every year.

The trust, managed by a Guernsey-based offshore specialist called Harbour Trust, owns a BVI company named Calva Holdings Limited. Calva owns another BVI company, which owns the Barbados property.

A message to Mossack Fonseca’s compliance department stressed the need for ‘client confidentiality’.

Sir Mark was unavailable for comment.

Lord Glenconner, Princess Margaret’s lifelong friend, held assets in an offshore company called Beau Estates. Leaked documents show the company, set up in Panama in 1988, was controlled by ‘Mr Lord Glenconner’.

He had a huge property interest in St Lucia. After his death in 2010, it emerged he had left the entire estate to a manservant, Winston Kent Adonai.

Stanley Kubrick's former home is owned by offshore companies controlled by his daughters, the leaks revealed. After the reclusive film director’s death, his Hertfordshire manor was transferred to companies registered in the BVI.

Named in the Panama Papers: Film director Stanley Kubrick (left) and golfer Sir Nick Faldo (right)

AZERBAIJAN GIRLS' UK MANSIONS Leyla and Arzu Aliyeva The daughters of Azerbaijan’s leader have cultivated a multi-million pound British property empire via secret offshore firms, the Panama leaks reveal. The socialite daughters of notorious dictator Ilham Aliyev were named as shareholders of a firm based in the British Virgin Islands used to manage their growing portfolio of luxury apartments and mansions. Leyla, 31, and her younger sister Arzu, 27, formed the offshore company with the help of Panamanian law firm Mossack Fonseca for ‘holding UK property’. They were educated at London’s £15,000-a-year Queen’s College for girls, and are thought to have a £75million property empire across Dubai, Paris and the UK, including a £17million Hampstead Heath mansion. Advertisement

DSK'S LINKS TO 31 OFFSHORE FIRMS Dominique Strauss-Kahn was director of a firm which helped businesses dodge tax by creating companies in offshore havens, it has emerged. The former head of the International Monetary Fund chaired a company called Leyne Strauss-Kahn (LSK) which set up 31 offshore companies, according to the Panama Papers. Mr Strauss-Kahn held a 20 per cent stake in the business after he resigned from the IMF in 2011. Despite Mr Strauss-Khan’s Left-wing views, it emerged that LSK helped clients set up businesses in locations including the Seychelles. At least 31 firms set up by LSK subsidiary Assya Asset Management Luxembourg (AAML) were named in the leaked papers. There is no suggestion that Mr Strauss-Kahn acted illegally and AAML had already worked in tax havens before the former IMF chief’s arrival. The leaks will be a further embarrassment to the disgraced politician, following his trial and acquittal last year on charges of acquiring prostitutes for sex parties. Advertisement

Mossack Fonseca documents also show that other assets and finances belonging to Mr Kubrick were tied up in similar companies. This could have saved the family large amounts in inheritance tax, but this is not detailed in the papers.

Jackie Chan, the Hollywood star and martial arts expert, has owned at least six offshore companies, the Panama Papers reveal.

They include Jumbo Jaz Investment, Jackie Chan Ltd and Dragon Stream Ltd, all based in the BVI.

Mr Chan, worth £35million, was unavailable for comment.

London-based Roksanda Ilincic is also among the latest names to emerge from the Panama Papers which have exposed the tax-avoidance schemes of the world's rich and famous.

The Serbian designer, whose dresses sell for up to £5,000, is said to have enlisted Panama law firm Mossack Fonseca to set up a secret company in the tax haven of the British Virgin Islands (BVI).

Her details were found by the Belgrade-based Crime and Corruption Reporting Network (KRIK) among nearly 11million leaked documents.

KRIK told MailOnline the documents show Mrs Ilincic and her husband became shareholders of Greenland Property Limited which was registered in the BVI.

According to the Serbian Business Registry Agency, Greenland Property has 50 per cent stake shares in a company called MP Invest based in Belgrade.