Question: Ian Brett Culverhouse was sacked following suspension from his duties as Assistant Manager of a professional football club founded in what year?

Context articles: Ron Gray (footballer)
Rainer Widmayer
2010–11 Crystal Palace F.C. season
Chachoengsao Hi-Tek F.C.
Andy Hessenthaler
Ian Culverhouse
FK Sarajevo
Caretaker manager
Roy Keane
Aston Villa F.C.

Ron Gray (25 June 1920 – 11 October 2002) is a former association football player, manager and scout.
 Born in North Shields, wing half Gray started his professional year in 1938 with Sheffield United, later moving to Lincoln City, Notts County and finally Watford, before retiring at the age of 26 due to injury.
 He started his managerial career at Watford, but his tenure was not particularly successful.
 The club recorded their lowest ever football league finish, having to apply for re-election to the Football League in 1950–51.
 His next managerial role was at Millwall.
 After his first spell as manager, Gray stayed at the club as assistant manager to Reg Smith.
 Gray was re-appointed as manager after Smith was sacked, and led the club to promotion as Fourth Division champions in 1961–62.
 Gray later spent four seasons at Lincoln City from 1966 to 1970, when he signed future Watford manager Graham Taylor as a player.
 After leaving Lincoln, Gray joined Ipswich Town as a scout, where he remained until his retirement in 1987.
 and discovered many of the 1978 FA Cup and 1981 UEFA Cup winning team's under the management of Bobby Robson.
Rainer Widmayer is a former German footballer and manager.
 During his active career, he played mostly in the lower divisions, except his final season, during which he played in the 2.
 Bundesliga for SSV Ulm.
 As manager, he has been assistant manager of Swiss clubs FC St. Gallen and Grasshopper Club Zürich.
 In Germany, he assistant managed Hertha BSC and the reserves and professional squad of VfB Stuttgart.
 After Markus Babbel was sacked as manager of Hertha BSC, Widmayer was appointed caretaker of the Berlin club.
 Several days later, having completed his duties of caretaker, Widmayer left Hertha altogether.
The Crystal Palace F.C. season 2010-11 was Crystal Palace's sixth consecutive season in the Championship.
 The previous season had seen Palace finish one place above the relegation zone, having been deducted ten points for going into administration.
 The CPFC 2010 consortium completed a takeover of the club in the close season and installed former Scotland manager George Burley as the club's new boss, with club legend Dougie Freedman continuing his role as assistant manager.
 However, after a poor start to the season, Burley was sacked on New Year's Day and Freedman named manager the following week.
 Under Freedman fortunes improved, and the club secured another season at Championship level shortly before the conclusion of the campaign.
Chachoengsao Hi-Tek Football Club (Thai: สโมสรฟุตบอลจังหวัดฉะเชิงเทรา ), commonly referred to as "Padrew", is a Thailand professional football club based in Chachoengsao Province.
 They have played in the Thai League 3 Northern region.
 The club's home stadium is Pimpayachan Stadium.
 The club founded in 1997 to play semi-professional football tournament in Thailand until 2007, they can promote to play in Thailand professional football league.
 The club nickname is "The Fighting Fish" (Thai call; "Pla Kud Nak Su"), the most popular fish in the province.
Andrew Hessenthaler (born 17 August 1965 in Dartford, Kent) is an English football manager and former player.
 He began his career in non-league football and did not turn professional until he joined Watford at the age of 26.
 In 1996, Hessenthaler joined Gillingham and spent the next ten years at the club as player and later player-manager, managing the club to its highest ever finish in the English football league system and becoming regarded as a legend of the Kent club.
 After leaving Gillingham, he had a short spell at Barnet before joining Dover Athletic in 2007.
 In his two seasons in charge he led the club to successive championships, of Isthmian League Division One South and the Isthmian League Premier Division.
 After three years at Dover, he became manager at Gillingham for the second time, but his contract was terminated at the end of the 2011–12 season.
 He returned to the club as assistant manager in 2014, before taking on a similar role at Leyton Orient the following year.
 In 2016, he was appointed manager of the club, but was sacked later the same year.
Ian Brett Culverhouse (born 22 September 1964 in Bishop's Stortford, Hertfordshire), is an English former professional footballer and current first-team manager at Kings Lynn Town.
 He was a defender who played in the position of right-back.
 In May 2014 he was sacked following suspension from his duties as Assistant Manager of Aston Villa.
Fudbalski klub Sarajevo (English: Sarajevo Football Club ) is a Bosnian professional football club based in Sarajevo, the capital city of Bosnia and Herzegovina and is one of the most successful clubs in the country.
 Founded on 24 October 1946, FK Sarajevo was the most successful club from SR Bosnia in former SFR Yugoslavia, winning two Yugoslav First League titles, being runners-up on two other occasions and finishing 6th in that competition's all-time table.
 The club's official colours are maroon and white.
 FK Sarajevo was the only major football club founded by the post-war Yugoslav authorities in the city of Sarajevo.
 The club entered the Yugoslav First League in the 1948–49 season, and eventually competed in all but two seasons in the top tier.
 After Bosnia and Herzegovina gained independence from Yugoslavia, FK Sarajevo became one the country's biggest ambassadors, departing on a large world tour during the Bosnian war with the goal of gaining international support for the country's cause.
In association footballing terms, a caretaker manager is somebody who takes temporary charge of the management of a football club, usually when the regular manager is dismissed, or leaves for a different club.
 However, a caretaker may also be appointed if the regular manager is suspended, ill or unable to attend to their usual duties.
 Caretaker managers are normally appointed at short notice from within the club, usually the assistant manager, a senior coach, or an experienced player.
 In other sports, the term "interim manager" is more commonly used.
Roy Maurice Keane (born 10 August 1971) is an Irish football assistant manager and former professional football player.
 He is the joint-most successful Irish footballer of all time, having won 19 major trophies, 17 of which came at Manchester United, in his club career.
 He is currently the assistant manager of the Republic of Ireland national football team.
Aston Villa Football Club ( ; nicknamed Villa, The Villa, The Villans and The Lions) is a professional football club in Aston, Birmingham, that plays in the Championship, the second level of English football.
 Founded in 1874, they have played at their current home ground, Villa Park, since 1897.
 Aston Villa were one of the founder members of the Football League in 1888 and of the Premier League in 1992.