Which football team won a La Liga trophy in the season that started on 29 August 1998 and finished on 20 June 1999?
1998–99 La Liga The 1998–99 La Liga season, the 68th since its establishment, started on 29 August 1998 and finished on 20 June 1999.
2008–09 Copa del Rey The 2008–09 Copa del Rey was the 107th staging of the Copa del Rey. The competition started on August 23, 2008 and concluded on May 13, 2009 with the final, held at the Mestalla Stadium in Valencia, in which Barcelona lifted the trophy for the 25th time in their history with a 4–1 victory over Athletic Bilbao, who qualified for the third qualifying round of the 2009–10 UEFA Europa League. The defending cup holders were Valencia, but they were eliminated in the quarter-finals.