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.
1981–82 La Liga The 1981–82 La Liga season, the 51st since its establishment, started on 19 September 1981, and finished on 25 April 1982. It was composed of the following clubs: