The Spanish coat of arms is the national emblem of Spain, featuring a shield divided into four quadrants. The first and fourth quadrants represent the Kingdom of Castile, while the second represents the Kingdom of León, and the third symbolizes the Kingdom of Aragon. At the center, there is a small emblem of the Kingdom of Navarre. Above the shield, a royal crown signifies the monarchy. The coat of arms also includes two columns on either side, representing the Pillars of Hercules, which symbolize Spain's historical connection to the Mediterranean Sea and the Atlantic Ocean.