Sir Oswald Ernald Mosley, 6th Baronet (16 November 1896 – 3 December 1980) was a British politician known principally as the founder of the British Union of Fascists. He was also the sixth baronet of a title established in 1720.

Mosley was the eldest of three sons of Sir Oswald Mosley, 5th Baronet (1874–1928), and his wife, Katharine Maud Edwards-Heathcote (1874–1950, the second child of Captain Justinian Edwards-Heathcote, of Market Drayton, Shropshire). Mosley's family were Anglo-Irish but his branch were prosperous landowners in Staffordshire. He was born in Rolleston Hall, near Burton-on-Trent. When his parents separated, he was brought up by his mother and his paternal grandfather, Sir Oswald Mosley, 4th Baronet. Within the family and among intimate friends, he was always called 'Tom'. He lived at Apedale Hall for numerous years, near to Newcastle-under-Lyme. His grandfather was the son of Sir Tonman Mosley, 3rd Baronet, and his wife Catherine Wood, whose son Tonman Mosley was the 1st Lord Anslow, and grandson of Sir Oswald Mosley, 2nd Baronet, the son of Sir John Parker Mosley, 1st Baronet, and his wife Elizabeth Bayley, and grandson of Nicholas Mosley and his wife Elizabeth Parker. The 1st Baronets Mosley also had a daughter, Frances Mary Mosley, who married George Smith, being the parents of Oswald Smith, married to Henrietta Hodgson and father to Frances Dora Smith, wife of Claude Bowes-Lyon, 13th Earl of Strathmore and Kinghorne, the grandparents of Elizabeth Bowes-Lyon.

He was educated at West Downs in Winchester, Winchester College and the Royal Military Academy Sandhurst. During World War I, he was commissioned in the 16th The Queen's Lancers and fought on the Western Front. He transferred to the Royal Flying Corps as an observer but while showing off in front of his mother and sister he crashed, which left him with a permanent limp. He returned to the trenches before the injury was fully healed and, at the Battle of Loos, he passed out at his post from the pain. He was assigned to desk jobs for the rest of the war.

At the end of the war, Mosley decided to go into politics as a Conservative Member of Parliament (MP), although he was only 21 years old and had not fully developed his politics. Nonetheless he was driven by a passionate conviction to avoid any future war and this motivated his career. Largely because of his family background, he was considered by several constituencies; a vacancy near the family estates seemed to be the best prospect. Unexpectedly, he was selected for Harrow first. In the general election of 1918 he faced no serious opposition and was elected easily. He was the youngest member of the House of Commons to take his seat (there was an abstentionist Sinn Féin MP who was younger). He soon distinguished himself as an orator and political player, one marked by extreme self-confidence. He made a point of speaking in the House of Commons without notes.

Mosley was at this time falling out with the Conservatives over the issue of Irish policy, and the use of the Black and Tans to suppress the Irish population. Eventually he 'crossed the floor' and sat as an Independent MP on the opposition side of the House of Commons. Having built up a following in his constituency, he retained it against a Conservative challenge in the general elections of 1922 and 1923. By 1924 he was growing increasingly attracted to the Labour Party, which had just formed a government, and in March he joined. He immediately joined the Independent Labour Party (ILP) as well and allied himself with the left.

When the government fell in October, Mosley had to choose a new seat as he believed that Harrow would not re-elect him as a Labour candidate. He therefore decided to oppose Neville Chamberlain in his constituency of Birmingham Ladywood. An energetic campaign led to a knife-edge result but Mosley was defeated by 77 votes. His period outside Parliament was used to develop a new economic policy for the ILP, which eventually became known as the Birmingham Proposals; they continued to form the basis of Mosley's economics until the end of his political career. In 1926, the Labour-held seat of Smethwick fell vacant and Mosley returned to Parliament after winning the resulting by-election on 21st December.

Mosley and his wife Cynthia were ardent Fabian Socialists in the 1920s and 30s. Mosley appears in a list of names of Fabians from Fabian News and Fabian Society Annual Report 1929-31. He was Kingsway Hall lecturer in 1924 and Livingstone Hall lecturer in 1931.

Mosley then made a bold bid for political advancement within the Labour Party. He was close to Ramsay MacDonald and hoped for one of the great offices of state, but when Labour won the 1929 general election he was only appointed to the post of Chancellor of the Duchy of Lancaster (a defacto Minister without Portfolio), outside the Cabinet. He was given responsibility for solving the unemployment problem, but found that his radical proposals were blocked either by his superior James Henry Thomas or by the Cabinet. Mosley was always impatient and eventually put forward a whole scheme in the 'Mosley Memorandum' to find it rejected by the Cabinet; he then resigned in May 1930. He attempted to persuade the Labour Party Conference in October, but was defeated again. The memorandum called for high tariffs to protect British industries from international finance, for state nationalisation of industry and a programme of public works to solve unemployment.

Determined that the Labour Party was no longer suitable, Mosley quickly founded the New Party. Its early parliamentary contests, in the Ashton-under-Lyne by-election, 1931 and subsequent by-elections, were successful only in splitting the vote and allowing the Conservative candidate to win. Despite this, the organization gained support among many Labour and Conservative MPs, who agreed with his corporatist economic policy. Among those who agreed with Mosley's economic ideas were Aneurin Bevan and Harold Macmillan. It also gained the endorsement of the Daily Mail, a British newspaper. The New Party increasingly inclined to fascist policies, but Mosley was denied the opportunity to get his party established when the 1931 election was suddenly called. All of its candidates, including Mosley himself, lost their seats. As the New Party gradually became more radical and authoritarian, many previous supporters defected from it.

After failure in 1931 Mosley went on a study tour of the 'new movements' of Mussolini and other Fascists, and returned convinced that it was the way forward for him and for Britain. He determined to unite the existing fascist movements and created the British Union of Fascists (BUF) in 1932. The BUF was anti-Communist and protectionist. It claimed membership as high as 50,000, and had the Daily Mail and Daily Mirror among its earliest supporters. Among his followers were the novelist Henry Williamson, military theorist J.F.C. Fuller and the future Lord Haw Haw, William Joyce.

Mosley had found problems with disruption of New Party meetings and instituted a corps of black-uniformed paramilitary stewards, who were nicknamed blackshirts. The party was frequently involved in violent confrontations, particularly with Communist and Jewish groups and especially in London. At a large Mosley rally at Olympia on 7 June 1934, mass brawling broke out when hecklers were removed by blackshirts, resulting in bad publicity. This and the Night of the Long Knives in Germany led to the loss of most of the BUF's mass support. The party was unable to fight the 1935 general election. In October 1936 Mosley and the BUF attempted to organise a march through an area with a high proportion of Jewish residents, and violence resulted between local and nationally organised protestors trying to block the march and police trying to force it through, since called the Battle of Cable Street. At length Sir Philip Game the Police Commissioner disallowed the march from going ahead and the BUF abandoned it. Mosley continued to organise marches policed by the blackshirts, and the government was sufficiently concerned to pass the Public Order Act 1936 which, amongst other things, banned political uniforms and quasi-military style organizations and came into effect on 1 January 1937.

In the London County Council elections in 1937, the BUF stood in three of its East London strongholds, polling up to a quarter of the vote. Mosley then made most of the employees redundant, some of whom then defected from the party with William Joyce. As the European situation moved towards war, the BUF began nominating Parliamentary candidates and launched campaigns on the theme of 'Mind Britain's Business'. After the outbreak of war, he led the campaign for a negotiated peace. He was at first received well but, after the invasion of Norway, this gave way to hostility and Mosley was nearly assaulted.

On 23 May 1940 Mosley, who had continued his peace campaign, was interned under Defence Regulation 18B, along with most active fascists in Britain, and the BUF was later proscribed. His second wife Diana, whom he had married in 1936 in the presence of Hitler and Goebbels, was also interned, shortly after the birth of their son Max; they lived together for most of the war in a house in the grounds of Holloway prison. Mosley used the time to read extensively on classical civilizations. The couple were released in November 1943, when Mosley was suffering with phlebitis, and spent the rest of the war under house arrest. On his release from prison he stayed at the Shaven Crown Hotel in Shipton-under-Wychwood and was the subject of much media attention. However, the war ended what remained of his political reputation.

After the war Mosley was contacted by his former supporters and persuaded to rejoin active politics. He formed the Union Movement, calling for a single nation-state covering the continent of Europe (known as Europe a Nation), and later attempted to launch a National Party of Europe to this end. The Union Movement's meetings were often physically disrupted, as Mosley's meetings had been before the war, and largely by the same opponents. This led to Mosley's decision, in 1951, to leave Britain and live in Ireland. He later moved to Paris. Of his decision to leave, he said, "You don't clear up a dungheap from underneath it."

Mosley briefly returned to Britain in order to fight the 1959 general election at Kensington North, shortly after the 1958 Notting Hill race riots. Concerns over immigration were beginning to come into the spotlight for the first time and Mosley led his campaign on this issue. When Mosley's final share of the vote was less than he expected, he launched a legal challenge to the election on the assumption that the result had been rigged (the election was upheld). He returned for the last time to contest the 1966 general election at Shoreditch and Finsbury where he fared even worse before writing his autobiography, My Life (1968) followed by a number of television appearances and eventual retirment. In 1977, by which time he was suffering from Parkinson's disease, he was nominated for the post of Rector of the University of Glasgow. In the election University of Glasgow Rectorial Election, 1977 he polled over 100 votes and finished bottom of the poll.

Mosley was a noted philanderer and had numerous affairs, including, before his first marriage, a short romance with his first wife's older sister Mary Irene Curzon.

In May 1920, he married Cynthia Curzon (known as 'Cimmie'), second daughter of George Nathaniel Curzon, Lord Curzon of Kedleston, Viceroy of India, and Lord Curzon's first wife, the American mercantile heiress, the former Mary Victoria Leiter. Lord Curzon had to be persuaded that Mosley was a suitable husband, as he suspected Mosley was largely motivated by social advancement and her inheritance. Nevertheless, the wedding was the social event of the year, attended by many branches of European royalty, including King George V and Queen Mary.

He had three children by Cynthia: Vivien (b. 1921), Nicholas Mosley (b. 1923), who wrote a biography of his father, and Michael (1932).

During this marriage he had an extended affair with his wife's younger sister Lady Alexandra Metcalfe, as well as their stepmother, Grace Curzon, Marchioness Curzon of Kedleston, the American-born second wife and widow of Lord Curzon of Kedleston.

Cynthia died of peritonitis in 1933, which left Mosley (though stricken with grief and remorse) free to marry his then current mistress Diana Guinness, née Mitford, (one of the celebrated Mitford sisters). They married in secret in 1936, in the Berlin home of Nazi chief Joseph Goebbels. Adolf Hitler was one of the guests. By Diana Mitford, he had two sons: Alexander (b. 1938) and Max Mosley (b. 1940), who is president of the FIA.

Mosley spent large amounts of his private fortune on the BUF and tried to establish it on a firm financial footing by negotiating, through Diana, with Adolf Hitler for permission to broadcast commercial radio to Britain from Germany.

Oswald Mosley died on 3 December 1980 in his Orsay home, aged 84 years. He was cremated in Paris and his ashes were scattered on the pond at his Orsay home. His Papers are housed at the University of Birmingham Special Collections.

* He was attacked by the satirical television programme Not The Nine O'Clock News in the song "Baronet Oswald Ernald Mosley", which featured Mel Smith, Pamela Stephenson and Griff Rhys-Jones all dressed as Nazi Skinheads, singing his eulogy and reading various positive obituaries from newspapers such as The Times. * He was a friend of Edward VIII, who approved of the BUF campaign for Edward to keep his throne. * The P.G. Wodehouse character Roderick Spode is patterned after Mosley. * The original version of the Elvis Costello song "Less Than Zero" is an attack on Mosley and his politics, but US listeners assumed that the "Mr Oswald" referred to was Lee Harvey Oswald and Costello obligingly wrote an alternative lyric in which it did. * In 1997 Channel Four Television produced a mini-series about him called Mosley, starring Jonathan Cake. * In 2006 he was selected by the BBC History Magazine as the 20th century's worst Briton. (BBC) * Mosley is the fascist leader of Great Britain in Guy Walters' alternative-history novel "The Leader." * The Men They Couldn't Hang song "Ghosts of Cable Street" from their album "How Green Is The Valley" is about the Cable Street incident in 1936. * In the DC comics Elseworlds title Superman: War of the Worlds, after the devastating attack from the Martians, Oswald Mosley becomes the fascist leader of Great Britain. *In the alternative-history novel Collaborator after a Nazi victory against Britain, Mosley refuses to cooperate with the Germans and is imprisoned in the Tower of London. *In Harry Turtledove's Southern Victory Series of alternate-history novels, Mosley and Winston Churchill lead a Fascist Britain after the Allies loss of the First World War. * Aldous Huxley's Point Counter Point features Everard Webley, a character that is modeled after Oswald Mosley. * Musical group Blood Axis used Mosley's speech "Comrades in Struggle" in the song "Sarabande Oratoria," the first song of their album Blot: Sacrifice in Sweden.

*My Life, the autobiography of Oswald Mosley. *Oswald Mosley, Robert Skidelsky *Fascism in Britain, Richard Thurlow *Blackshirt, Stephen Dorril, Viking Publishing, ISBN 0-670-86999-6 *Hurrah for the Blackshirts!, Martin Pugh, ISBN 0-224-06439-8 *Rules of the Game, Beyond the Pale, Nicholas Mosley, ISBN 0-7126-6536-6 *Haw-Haw: the tragedy of William and Margaret Joyce by Nigel Farndale (Macmillan, London, 2005)

* Portraits at the National Portrait Gallery * Beating Back Mosley - an account from 1958 on libcom.org * BBC report on MI5 surveillance of Mosley * Academic essay examining the failure of Mosley and the BUF

Mosley, Oswald, 6th Baronet