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 Athletic Bilbao, Barcelona and Real Madrid have not been relegated.The league was cancelled between 1936 and 1939 because of the Spanish Civil War.[3