Question: In what month did Real Madrid win the 2000–01 La Liga title?

Context paragraphs:
1997–98 Real Madrid C.F. season: Real Madrid failed to retain their La Liga title, but made up for the domestic disappointment by winning the UEFA Champions League with a 1–0 win over Juventus in Amsterdam, their first European Cup since 1966.  This, however, was not enough to save the job of manager Jupp Heynckes, who paid for Madrid's low league finish, just eight days after the European triumph.

2007–08 La Liga: The 2007–08 La Liga season, the 77th since its establishment, started on 25 August 2007 and finished on 18 May 2008.  Real Madrid defended their La Liga title successfully after a 2–1 victory over Osasuna.  This season, all European leagues ended earlier than the previous season, due to the UEFA Euro 2008 championship.  It also was the first year of the new La Liga television agreement that had La Sexta mark its first year of television broadcasting.

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.

2000–01 La Liga: The 2000–01 La Liga season, the 70th since its establishment, started on 9 September 2000 and finished on 17 June 2001.

2008–09 La Liga: The 2008–09 La Liga season (known as the "Liga BBVA" for sponsorship reasons) was the 78th since its establishment.  Real Madrid were the defending champions, having won their 31st La Liga title in the previous season.  The campaign began on 30 August 2008 and ended on 31 May 2009.  A total of 20 teams contested the league, 17 of which already contested in the 2007–08 season, and three of which were promoted from the Segunda División.  In addition, a new match ball – the Nike T90 Omni – served as the official ball for all matches.

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.

List of Real Madrid C.F. seasons: Real Madrid Club de Fútbol is a team who compete 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 lost 3–1 in the semi-final of the Campeonato de Copa de S.M. Alfonso XIII against FC Barcelona.  Real Madrid played against other local clubs in various regional tournaments disputed from 1902 to 1940.  However, in 1929 the club became one of the founding members of La Liga, Spain's first national league.  As of 2014, Real is one of only five clubs never to have been relegated from the top level of Spanish football, the others being Athletic Bilbao, FC Barcelona, Getafe and S.D. Eibar

List of Spanish football champions: The Spanish football champions are the winners of the primary football competition in Spain, La Liga.  The league is contested on a round robin basis and the championship awarded to the team that is top of the league at the end of the season.  La Liga, first established in 1929, originally contained ten teams.  Before La Liga's organization, the Copa del Rey—a regionalised cup competition—was effectively the national championship.  La Liga is contested in by 20 teams; the three lowest-placed teams are relegated to the Segunda División and replaced by the top three teams in that division.  Of the founding teams in La Liga, only Real Madrid, Barcelona and Athletic Bilbao have not been relegated.  The league was cancelled between 1936 and 1939 because of the Spanish Civil War.

2001 Supercopa de España: The 2001 Supercopa de España was two-leg Spanish football matches played on 19 August and 22 August 2001.  It was contested by Zaragoza, who were Copa del Rey winners in 2000–01, and Real Madrid, who won the 2000–01 La Liga title.  Real Madrid won the Supercopa de España 4–1 on aggregate.

Lippo Hertzka: Lippo Hertzka (19 November 1904 – 14 March 1951) was a Hungarian football player and manager.  He played for Essener Turnerbund, MTK Budapest and Real Sociedad.  After retiring, he coached seven teams, including Real Sociedad and Real Madrid, a team which he coached for 2 years (1930–1932) and led to an undefeated La Liga championship during the 1931-32 season, which meant the first La Liga title for the "white" squad.  He also won two league titles in Portugal for Benfica.

Supporting paragraphs: 2001 Supercopa de España 2000–01 La Liga
Answer: June