Mark Thatcher

In 2016 historic documents relating to Thatcher and Oman, expected to be released under the 30-year rule, were retained by the Government. The Guardian noted that the decision was made by John Whittingdale, a former political secretary to Margaret Thatcher.

In April 2016, Thatcher was named in the Panama Papers scandal; he has ownership of a house in Barbados as the beneficiary of a trust.

He was in Barbados when he received news of his mother's death. He returned to the UK to act as chief mourner at his mother's funeral, which took place at St Paul's Cathedral, London, on 17 April 2013.

He has two children by his first wife, Diane Burgdorf. He wed his second wife, Sarah Jane Russell, in 2008. After his father's death in 2003, he became Sir Mark Thatcher and succeeded to the Thatcher baronetcy, a hereditary title which had unusually been given to his father in 1990 (this being the only baronetcy created since 1964).

During his trial in Equatorial Guinea in June 2008 Simon Mann said that Thatcher "was not just an investor, he came completely on board and became a part of the management team" of the coup plot.

His Monaco residency was not renewed as he was said to be on a list of "undesirables" who would not be allowed further residency and he was required to leave by mid-2006. He was refused residency in Switzerland and settled in Gibraltar, where he married his second wife, Sarah Jane Russell, in March 2008. Russell is the daughter of Terence J. Clemence, a property developer, and sister to Claudia Viscountess Rothermere. She was formerly married to Lord Francis Hastings Russell, the younger son of John Russell, 13th Duke of Bedford.

In 2005, he was convicted and given a four-year suspended prison sentence and a fine in South Africa for funding the 2004 Equatorial Guinea coup d'état attempt.

Following his guilty plea and his divorce, he left South Africa in 2005 for Monaco on a one-year temporary residency permit, while his wife and children returned to the United States. Thatcher was unable to get a US visa due to his South African conviction and remains barred from entering the United States.

Thatcher was arrested at his home in Constantia, Cape Town, South Africa, in August 2004 and was charged with contravening two sections of South Africa's Foreign Military Assistance Act, which bans South African residents from taking part in any foreign military activity. The charges related to possible funding and logistical assistance in relation to an attempted coup in Equatorial Guinea organized by Thatcher's friend, Simon Mann. He was released on 2 million rand bail.

On 24 November 2004, the Cape Town High Court upheld a subpoena from the South African Justice Ministry that required him to answer under oath questions from Equatorial Guinean authorities regarding the alleged coup attempt. He was due to face questioning on 25 November 2004, regarding offences under the South African Foreign Military Assistance Act; these proceedings were later postponed until 8 April 2005. Ultimately, following a process of plea bargaining, Thatcher pleaded guilty in January 2005 to breaking anti-mercenary legislation in South Africa by investing in an aircraft without taking proper investigations into what it would be used for, admitting in court that he had paid the money, but said he was under the impression it was to be invested in an air ambulance service to help impoverished Africans. The judge rejected this explanation and Thatcher was fined R3,000,000 and received a four-year suspended prison sentence. An advisor to Equatorial Guinea's President Teodoro Obiang Nguema Mbasogo told the BBC's Focus on Africa programme that: "We are confident that justice has been done", and did not indicate that the country would seek Thatcher's extradition.

In 2003, he became the Honourable Sir Mark Thatcher when he succeeded to the hereditary Thatcher baronetcy awarded to his father in 1990. He and his wife announced their intention to divorce in September 2005 after eighteen years of marriage. His wife moved back to the United States with their children, the same year that he pleaded guilty in relation to an attempted coup in Equatorial Guinea and questions were being asked in the government about whether he should be stripped of his title.

In 1998 South African authorities investigated a company owned by Thatcher for allegedly running loan shark operations. According to the Star of Johannesburg, the company had offered unofficial small loans to hundreds of police officers, military personnel and civil servants, and then pursued them with debt collectors. He claimed that officers had defrauded him and charges were dropped. It was also suggested that he had profited from contracts to supply aviation fuel in various African countries. In 2003, following the death of his father, he was allowed to use the title of 'Sir' due to his inheritance of the Thatcher baronetcy a year before he was arrested in South Africa in connection with the 2004 Equatorial Guinea coup d'état attempt. He pleaded guilty to breaking anti-mercenary legislation in January 2005. At this time the Sunday Times suggested that he had personal assets of £60 million, most of which was in offshore accounts.

Thatcher is entitled the usage of the pre-nominal style "The Honourable" following the elevation of his mother to the peerage as a baroness in 1992; he shares this courtesy with his twin sister, Carol. After the death of his father in 2003, he inherited the Thatcher baronetcy which had been awarded in 1990, the first baronetcy created since 1964. Following his conviction in relation to the Equatorial Guinea coup d'état in 2004, it was suggested that he should be stripped of the title.

Sir Bernard Ingham, the Prime Minister's press secretary, suggested that he could best help the government win the 1987 general election by leaving the country. Margaret Thatcher's biographer, David Cannadine, stated that Mark Thatcher "traded shamelessly on his mother's name" and that he "continued to attract controversy and investigation from the tax authorities", much to his mother's embarrassment.. Alan Clark mentions the "Mark problem" in his published diaries. He moved to Texas, where he worked for David Wickins of Lotus Cars and British Car Auctions and met his first wife in 1984. In the United States he started Monteagle Marketing, a profitable company that sold whisky and clothing. During this period he spent some time in Switzerland as a tax exile, until he was forced to leave after the Swiss authorities began to question his residency qualifications. He helped arrange a contract for his mother's memoirs in the 1990s. A security alarm business he ran in the United States failed and in 1996 he was prosecuted for tax evasion, at which point he moved to Constantia, South Africa, with his wife and their two children.

His early career in business frequently led to questions being raised that he was benefiting from his mother's position, notably in relation to the Al-Yamamah arms deal. He left the UK in 1986, and has since lived in the United States, Switzerland, Monaco, South Africa, Gibraltar, Barbados, Guernsey, and Spain. In 2004 the Sunday Times estimated his wealth at £60 million, most of which they suggested was in offshore accounts.

He has denied claims that in 1985 he received millions of pounds in commissions in relation to the £45 billion Al-Yamamah arms deal, a controversial arms sale by British Aerospace to Saudi Arabia; he has not denied that a house in Belgravia, London, was purchased for him for £1 million in 1987 by an offshore company controlled by Wafic Saïd, a middleman in the deal. In 1986 his mother again faced questions in the House of Commons, this time over her son's relationship with the Sultan of Brunei.

On 9 January 1982 Thatcher, his French co-driver, Anne-Charlotte Verney, and their mechanic went missing for six days in the Sahara Desert whilst driving a Peugeot 504 in the Paris-Dakar Rally. They were declared missing on 12 January. His father flew to Dakar, where a large-scale search was launched, including six military aircraft from three countries and Algerian ground troops. On 14 January, the Algerian military spotted Thatcher's party 50 km (31 miles) off course. This caused international embarrassment to his mother. The Prime Minister insisted on paying £2,000 personally towards the cost of the search, and an unpaid 11,500 dinar hotel bill, one third of which was for drinks, caused diplomatic embarrassment.

During the mid to late 1980s, concerns were frequently expressed about possible conflicts of interest between his business interests and his mother's political visits. In 1984 his mother faced questions in the House of Commons about his involvement in representing the bid of Cementation, a British company and a subsidiary of Trafalgar House, to build a university in Oman at a time when the prime minister was urging Omanis to buy British.

Thatcher moved to Dallas, Texas, United States, in the mid-1980s, where he met his first wife, Diane Burgdorf (later wife of James Beckett), in 1987. Their first child, Michael Thatcher, was born in 1989, and their second child, Amanda Margaret Thatcher, was born in 1993. In 1992, he became The Honourable Mark Thatcher when his mother was made a life peer. In 1996, he moved to South Africa following financial scandals in the United States.

Having taken various short-term jobs Thatcher moved to Hong Kong, where he built up a network of business connections, particularly in the Middle East and in motor racing. In 1977 he set up Mark Thatcher Racing, which ran into financial difficulties.

Mark was sent to board at Belmont School at the age of eight and then to Harrow School, which he left in 1971 having passed three O Level exams. He went on to study accountancy but failed his accountancy exams with Touche Ross on three occasions.

Sir Mark Thatcher, 2nd Baronet (born 15 August 1953), is a British businessman. He is the son of Margaret Thatcher, Prime Minister of the United Kingdom from 1979 to 1990, and Sir Denis Thatcher, and is the twin brother of Carol Thatcher.

Thatcher and his twin sister, Carol, were born six weeks prematurely by caesarean section on 15 August 1953 at Queen Charlotte's and Chelsea Hospital in Hammersmith, London , the same year that their mother qualified as a barrister. Their early years were spent in Chelsea, London. Their mother was narrowly defeated in her bid to become the Conservative Party candidate in the 1955 Orpington by-election. She was first elected to Parliament at the 1959 general election. The children, aged six at the time, featured in her first television interview. His sister observed: "All my childhood memories of my mother were just someone who was superwoman before the phrase had been invented. She was always flat out, she never relaxed, household chores were done at breakneck speed in order to get back to the parliamentary correspondence or get on with making up a speech."