The term "King of Spain" refers to the monarch of the Kingdom of Spain, a constitutional monarchy in southwestern Europe. The current king, Felipe VI, ascended to the throne on June 19, 2014, following the abdication of his father, Juan Carlos I. The king's role is largely ceremonial, with real political power resting with the elected government. The Spanish monarchy has a long history, dating back to the unification of the crowns of Castile and Aragon in the late 15th century. The king represents Spain at official events and serves as a symbol of national unity and continuity.