Question: 2012–13 Real Madrid C.F. season began with a win at the matchup that took place on which two dates?

Context paragraphs:
History of Real Madrid C.F.: This article is about the history of Real Madrid C.F., a football club based in Madrid, Spain.  For an overview of the club, see Real Madrid C.F.

Real Madrid Baloncesto: Real Madrid Baloncesto (English: Real Madrid Basketball) is a Spanish professional basketball team that was founded in 1931, as a division of the Real Madrid C.F. multi sports club.  They play domestically in the Liga ACB, and internationally in the EuroLeague.

Campo de O'Donnell: Campo de O'Donnell was a multi-use stadium in Madrid, Spain.  The stadium should not be confused with Campo de O'Donnell (Atletico Madrid), which had same name and was situated 200 meters away on the same boulevard.  It was initially a field (campo) in the area of O'Donnell, next to the main boulevard called .  It became the home stadium of Real Madrid C.F. in 1912.  The capacity of the stadium was 5,000 spectators.  In 1923, Real Madrid C.F. moved on to Campo de Ciudad Lineal, and Campo de O'Donnell was closed.

List of Real Madrid C.F. presidents: Real Madrid C.F. is a football club based in Madrid, Spain that competes in La Liga, the most senior football league in Spain.  Since its founding in 1902, the club has had 19 different presidents.  The club is owned by the club-members of Real Madrid C.F., and similarly to a limited liability company, they elect the president by a ballot.  The president has the responsibility for the overall management of the club, including formally signing contracts with players and staff.  In Spain, it is customary for the president to watch the games in which the first-team participates, together with the president from the opposing team.

1986 UEFA Cup Final: The 1986 UEFA Cup Final was a football tie played on 30 April and 6 May 1986 between Real Madrid C.F. of Spain and 1.  FC Köln of West Germany.  Madrid won 5–3 on aggregate.  The second leg was originally scheduled for Thursday 8 May, but was anticipated to Tuesday 6 May on request by Real Madrid for reasons of domestic match to be played.  The match was disputed in Berlin instead of Cologne as 1.  FC Köln was punished by UEFA to play no less than 350 km from home after troubles caused by its supporters in the 2nd leg of the semi-final against Waregem

Rodrigo García Vizoso: Rodrigo García Vizoso (26 February 1909 – 2 June 2009) was a Spanish football goalkeeper.  He was born in A Coruña, the son of a carpenter, and took up football at a young age.  He joined his hometown team Deportivo de La Coruña in 1927 and remained with them until 1934, when his performance against Real Madrid C.F. impressed the owners enough that they signed him as a substitute for Ricardo Zamora.  He spent only one season with Real Madrid, however, before leaving to play for Granada CF.  When the Spanish Civil War Civil War broke out in 1936, he retired from football and spent nearly three years in the army.

List of Real Madrid C.F. players: Real Madrid C.F. is a professional association football club based in Madrid, Spain, that plays in La Liga.  The club was formed in 1902 as Madrid Football Club, and played its first competitive match on 13 May 1902, when it entered the semi-final of the Campeonato de Copa de S.M. Alfonso XIII.  Real Madrid was one of the founding members of La Liga in 1929, and is one of three clubs, including FC Barcelona and Athletic Bilbao, to have never been relegated from the league.  Since then, the club's first team has competed in numerous nationally and internationally organised competitions.  Real is the most successful club in Spanish football, having won a total of 64 domestic titles; a record 33 La Liga titles, 19 Spanish Cups, 10 Spanish Super Cups, 1 Copa Eva Duarte and 1 League Cup.  Real is the most successful club in European football, having won twenty one official UEFA trophies in total.

2012–13 Real Madrid C.F. season: The 2012–13 season is the 109th season in Real Madrid Club de Fútbol's history and their 82nd consecutive season in La Liga, the top division of Spanish football.  It covers a period from 1 July 2012 to 30 June 2013.  Real Madrid began the season by winning the Supercopa de España, defeating Barcelona on away goals.

List of Real Madrid C.F. records and statistics: Real Madrid C.F. is a Spanish professional association football club based in Madrid.  The club was formed in 1902 as "Madrid Football 'Club", and played its first competitive match on May 13, 1902, when it entered the semi-final of the Campeonato de Copa de S.M. Alfonso XIII.  Real Madrid currently plays in the Spanish La Liga.  Real Madrid was one of the founding members of La Liga in 1929, and is one of three clubs, including FC Barcelona and Athletic Bilbao, never to have been relegated from the league.  They have also been involved in European football ever since they became the first Spanish club to enter the European Cup in 1955, except for the 1977–78 and 1996–97 seasons.

2012 Supercopa de España: The 2012 Supercopa de España was a two-legged Spanish football match-up that took place on 23 and 29 August 2012 between the champions of 2011–12 La Liga, Real Madrid, and the winner of the 2011–12 Copa del Rey, Barcelona.

Supporting paragraphs: 2012–13 Real Madrid C.F. season 2012 Supercopa de España
Answer: 23 and 29 August 2012