The Constitution dedicates its Part II to the regulation of the monarchy, which is referred to as "The Crown" (). Article 56 of the Constitution establishes that the monarch is the head of state and symbolizes the unity of the Spanish state. It refers to the monarch's role as a "moderator" whose main role is to oversee and ensure the regular functioning of the institutions. The monarch is also the highest-ranked representative of the Spanish state in international relations and only exercises the functions that are explicitly attributed to him by the Constitution and the laws. The King's official title is "King of Spain" (), but he is allowed to use any other titles that are associated to the Spanish Crown.