The Council of Aragon was the result of the nature of the Spanish empire, composed of individual kingdoms ruled by a common king but each retaining their own laws, customs, and government. Ferdinand II, along with his wife Isabella, was the first ruler of both Castile and Aragon. Because Ferdinand II was crowned king of Castile before becoming king of Aragon, the majority of his time was spent at the Castilian royal court in Valladolid rather than in Aragon. This royal absenteeism created problems in the government and organization for the lands of Aragon. As a result, the viceroy and conciliar systems arose to solve these administrative problems. In 1494, the Council of Aragon was founded out of what had previously been the royal Council of the kings of Aragon. The Council consisted of a Treasurer-General, a Vice-Chancellor, and five Regentes; all of these positions except the Treasurer-General were filled with native-born Aragonese. Much of Council's members were drawn from the letrados, the lawyer-class on which Ferdinand and Isabella had relied on for administrative organization of their lands. While the viceroy remained the supreme administration in Aragon, the Council controlled their activities and was the link between the viceroy and the king. Its functions included receiving reports from viceroys, advising the king on his policies, and dispatching the king's orders to various territories. Through the Council of Aragon the king was able to oversee territories he could not visit and interact with the natives of these territories. The Council of Aragon served as the basis for future Councils that were created as the Spanish empire expanded in the 16th century. Olivares, in his memorandum on the Spanish government for King Philip IV, said of the councils, Councils were established not only for each of Spain's possessions but also for general affairs, such as the Council of the Inquisition, the Council of War, and the Consejo de Estado, the Council of State. Under Philip II, the Council of State remained rather small as the king preferred to do his own ruling. However, under Philip III it grew and became the "coping stone of the system." While the advantages of the conciliar system were obvious, the system also had its disadvantages. There remained no association between the different parts of the empires or attempt to break down the barriers between the disparate peoples of the empire; and indeed the only thing them together was the presence of a common king. In addition, there was no effort to establish a common government or promote economic and commercial ties between the various provinces. The individual interests of one province took priority over a measure that may benefit all. As a result, in the 16th century, both in Aragon and other conciliar-ruled territories, there lacked any real form of association.
