Question:
Richard was born on 2 October 1452 at Fotheringhay Castle, the twelfth of thirteen children of Richard Plantagenet, 3rd Duke of York and Cecily Neville at the beginning of what has traditionally been labelled the "Wars of the Roses", a period of "three or four decades of political instability and periodic open civil war in the second half of the fifteenth century", between supporters of Richard's father (a potential claimant to the throne of King Henry VI from birth)--"Yorkists"--in opposition to the regime of Henry VI and his wife, Margaret of Anjou, and those loyal to the crown ("Lancastrians"). When his father and the Nevilles were forced to flee to Ludlow in 1459, Richard and his older brother, George (later Duke of Clarence), were placed in the custody of the Duchess of Buckingham, and the Archbishop of Canterbury. When his father and elder brother Edmund, Earl of Rutland, were killed at the Battle of Wakefield on 30 December 1460, Richard, who was eight years old, and George were sent by his mother, the Duchess of York, to the Low Countries. They returned to England following the defeat of the Lancastrians at the Battle of Towton and participated in the coronation of Richard's eldest brother as King Edward IV in June 1461.
Apart from Shakespeare, Richard appears in many other works of literature. Two other plays of the Elizabethan era predated Shakespeare's work. The Latin-language drama Richardus Tertius (first known performance in 1580) by Thomas Legge is believed to be the first history play written in England. The anonymous play The True Tragedy of Richard III (c. 1590), performed in the same decade as Shakespeare's work, was probably an influence on Shakespeare. Neither of the two plays places any emphasis on Richard's physical appearance, though the True Tragedy briefly mentions that he is "A man ill shaped, crooked backed, lame armed" adding that he is "valiantly minded, but tyrannous in authority". Both portray him as a man motivated by personal ambition, who uses everyone around him to get his way. Ben Jonson is also known to have written a play Richard Crookback in 1602, but it was never published and nothing is known about its portrayal of the king.  Marjorie Bowen's 1929 novel Dickon set the trend for pro-Ricardian literature. Particularly influential was The Daughter of Time (1951) by Josephine Tey, in which a modern detective concludes that Richard III is innocent in the death of the Princes. Other novelists such as Valerie Anand in the novel Crown of Roses (1989) have also offered alternative versions to the theory that he murdered them. Sharon Kay Penman, in her historical novel The Sunne in Splendour, attributes the death of the Princes to the Duke of Buckingham. In the mystery novel The Murders of Richard III by Elizabeth Peters (1974) the central plot revolves around the debate as to whether Richard III was guilty of these and other crimes. A sympathetic portrayal of Richard III is given in The Founding, the first volume in The Morland Dynasty series by Cynthia Harrod-Eagles.  One film adaptation of Shakespeare's play Richard III is the 1955 version directed and produced by Laurence Olivier, who also played the lead role. Also notable are the 1995 film version starring Ian McKellen, set in a fictional 1930s fascist England, and Looking for Richard, a 1996 documentary film directed by Al Pacino, who plays the title character as well as himself. The play has been adapted for television on several occasions.
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What else is of note in this section?

Answer:
Sharon Kay Penman, in her historical novel

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Iron Maiden are an English heavy metal band formed in Leyton, East London, in 1975 by bassist and primary songwriter Steve Harris. The band's discography has grown to thirty-eight albums, including sixteen studio albums, twelve live albums, four EPs, and seven compilations. Pioneers of the new wave of British heavy metal, Iron Maiden achieved initial success during the early 1980s. After several line-up changes, the band went on to release a series of UK and US platinum and gold albums, including 1982's The Number of the Beast, 1983's Piece of Mind, 1984's Powerslave, 1985's live release Live
On New Year's Eve 1978, Iron Maiden recorded a demo, consisting of four songs, at Spaceward Studios in Cambridge. Hoping the recording would help them secure more gigs, the band presented a copy to Neal Kay, then managing a heavy metal club called "Bandwagon Heavy Metal Soundhouse", located in Kingsbury Circle, northwest London. Upon hearing the tape, Kay began playing the demo regularly at the Bandwagon, and one of the songs, "Prowler", eventually went to No. 1 in the Soundhouse charts, which were published weekly in Sounds magazine. A copy was also acquired by Rod Smallwood, who soon became the band's manager, and, as Iron Maiden's popularity increased, they released the demo on their own record label as The Soundhouse Tapes, named after the club. Featuring only three tracks (one song, "Strange World", was excluded as the band were unsatisfied with its production) all five thousand copies were sold out within weeks.  In December 1979, the band secured a major record deal with EMI and asked Dave Murray's childhood friend Adrian Smith of Urchin to join the group as their second guitarist. Smith declined as he was busy with his own band, Urchin, so Iron Maiden hired guitarist Dennis Stratton instead. Shortly afterwards, Doug Sampson left due to health issues and was replaced by ex-Samson drummer Clive Burr at Stratton's suggestion on 26 December. Iron Maiden's first appearance on an album was on the Metal for Muthas compilation (released on 15 February 1980) with two early versions of "Sanctuary" and "Wrathchild". The release led to an ensuing tour which featured several other bands linked with the new wave of British heavy metal.  Iron Maiden's eponymous 1980 release, Iron Maiden, debuted at No. 4 in the UK Albums Chart. In addition to the title track (a live version of which would be one of the first music videos aired on MTV), the album includes other early favourites such as "Running Free", "Transylvania", "Phantom of the Opera", and "Sanctuary" - which was not on the original UK release but appeared on the US version and subsequent remasters. The band set out on a headline tour of the UK, before opening for Kiss on their 1980 Unmasked Tour's European leg as well as supporting Judas Priest on select dates. Iron Maiden also appeared, to much acclaim, at the Reading Festival 1980. They were second to top of the bill on the Saturday, with UFO headlining. After the Kiss tour, Dennis Stratton was dismissed from the band as a result of creative and personal differences, and was replaced by Adrian Smith in October 1980.  In 1981, Iron Maiden released their second album, entitled Killers. Containing many tracks written prior to their debut release, only two new songs were written for the record: "Prodigal Son" and "Murders in the Rue Morgue" (the latter's title was taken from the short story by Edgar Allan Poe). Unsatisfied with the production on their debut album, the band hired veteran producer Martin Birch, who would go on to work for Iron Maiden until his retirement in 1992. The record was followed by the band's first world tour, which included their debut performance in the United States, opening for Judas Priest at The Aladdin Casino, Las Vegas.

was the demo successful?
Featuring only three tracks (one song, "Strange World", was excluded as the band were unsatisfied with its production) all five thousand copies were sold out within weeks.