Question: The 2012–13 season is the 109th season in Real Madrid Club de Fútbol's history and their 82nd consecutive season in La Liga, Real Madrid began the season by defeating Barcelona on away goals, by winning the 2012 Supercopa de España was a two-legged Spanish football match-up that took place on which dates, between the champions of 2011–12 La Liga, Real Madrid, and the winner of the 2011–12 Copa del Rey, Barcelona?
answer: 23 and 29 August 2012