Question: What nationality is the manager that Manchester City sacked in the 2009-10 season ?

Context paragraphs:
2009–10 Real Valladolid season: The 2009–10 season is Real Valladolid's third consecutive season in La Liga.  José Luis Mendilibar began the season as team's manager, but he was sacked on 1 February 2010 after the draw against Almería.  Onésimo Sánchez became the new team manager and, after the defeat against Villarreal in Nuevo José Zorrilla, he was also sacked on 5 April.  The directive discovered on 6 April the new team manager, Javier Clemente.

Stockport Smith: William "Stockport" Smith was an English footballer.  His regular position was as an inside right, but he also played in various other forward positions and even as a wing half on occasion.  He played for Stockport County, Manchester City, and Newton Heath.  He joined Manchester City from Stockport in 1897 and scored 22 goals in 54 league appearances in three years at the club.  He is often confused with another William Smith who played for Manchester City at the same time; because of this, they were known to Manchester City fans by the clubs they were signed from, with this William Smith referred to as "Stockport Smith" and the other as "Buxton Smith".

List of Manchester City F.C. seasons: Manchester City is an English professional association football club based in Manchester, who currently play in the Premier League.  The list covers the period from 1891 (when the club, then known as "Ardwick", joined the Football Alliance) to the present day.  It details the club's achievements in senior league and cup competitions, and the top scorers for each season.  The club was renamed Manchester City F.C in 1894, and moved to Maine Road in 1923.  Since 2003 the club has played at the City of Manchester Stadium.  Manchester City biggest rivals are Manchester United, whenever they play it is considered the Manchester Derby.

2012–13 Manchester City F.C. season: The 2012–13 season was Manchester City's 111th season of football, 11th consecutive season in the Premier League, and 21st season in the Premier League since it was first created.  City began the season as defending champions, having won the league in 2011–12.  The club also played in the UEFA Champions League for the third time, the second since the competition was rebranded.  City also reached the tenth FA Cup final in their history after beating Chelsea 2–1 at Wembley Stadium on 14 April 2013.  They then lost the final 1–0 against Wigan Athletic on 11 May 2013.  On 13 May 2013, Roberto Mancini was sacked as City manager following three-and-a-half years in the role.

Blue Moon Rising (film): Blue Moon Rising is a British sport documentary film released on 17 September 2010.  The film title is a play on words referring to Manchester City's fan anthem, "Blue Moon" and chronicles the fortunes of Manchester City Football Club through the 2009-2010 football season with insight from Manchester City supporters.  Shot and produced by Endemol in conjunction with the club, and features exclusive interviews with staff, players, board members and fans throughout the season.

Tony Book: Anthony Keith Book is an English retired footballer and manager who was born in Bath, 4 September 1934.  Book spent a large part of his career in Non-League football with his home town club Bath City, before entering league football with Plymouth Argyle.  At the age of 31, he joined First Division Manchester City, where he became captain.  Under Book's captaincy, Manchester City won four trophies, making him the most decorated Manchester City captain of all-time.  Book had a five-year tenure as Manchester City manager from 1974 to 1979, and subsequently held various coaching roles at the club until 1996.

2009–10 Manchester City F.C. season: The 2009–10 season is Manchester City Football Club's eighth consecutive season playing in the Premier League, the top division of English football, and its thirteenth season since the Premier League was first created with Manchester City as one of the its original 22 founding member clubs.  Overall, it is the team's 118th season playing in a division of English football, most of which have been spent in the top flight.  The club started the season under the management of Mark Hughes who was controversially sacked in mid-December after the team notched up seven consecutive draws in the Premier League.  He was replaced by the Italian manager Roberto Mancini.

Mark Hughes: Leslie Mark Hughes, OBE (born 1 November 1963) is a Welsh football manager and former player.  He is the current manager of English Premier League club Stoke City.

2010–11 VfL Wolfsburg season: VfL Wolfsburg suffered a nightmare season, only just staying up in Bundesliga, in spite of signing internationally seasoned players Diego and Simon Kjær.  Being threatened at the bottom of the table, especially after selling key striker Edin Džeko to Manchester City.  The replacements were not up to scratch, which saw manager Steve McClaren sacked.  Following a short stint with Pierre Littbarski in charge, the club's 2009 championship-winning manager Felix Magath, who just had been sacked from Schalke 04, in spite of having taken them to the quarter-finals of the UEFA Champions League.  Magath dropped Diego, prompting the Brazilian to refuse to sit on the substitutes' bench.  In spite of the turmoil, a crucial away win at Werder Bremen helped Wolfsburg to stay just two points above Borussia Mönchengladbach in the relegation-playoff zone.

1909–10 Manchester City F.C. season: The 1909–10 season was Manchester City F.C.'s nineteenth season of league football and first season back in the second rung of English football following their relegation the previous season.  As in the 1902–03 season, City rebounded instantly with a promotion in their first year back in the Second Division.  Winning the division gave the club a third Second Division trophy win - something only Liverpool had achieved at this point.  From 1910 to this day, no club has even for one season ever surpassed City's haul of second tier trophies, which currently stands at seven.

Supporting paragraphs: 2009–10 Manchester City F.C. season Mark Hughes
Answer: Welsh