In 2008/09 season, Barcelona ended back-to-back La Liga championships for Real Madrid and won the title themselves—sparking a period of domestic dominance which has lasted eight years, during which time the Catalan outfit totalled six triumphs in the league.
A paltry one title apiece for the two Madrid outfits, Real and Atletico, have broken the sequence in that time, with Barca the undoubted kings of Spain in the most recent period—though that could be ended this term as they trail Real Madrid by four points having played a game more.
The team has changed much in that period of time, spanning the coaching eras of Pep Guardiola, Tito Vilanova, Tata Martino and now Luis Enrique.