مملكة أراغون
The component realms of the Crown were not united politically except at the level of the king, who ruled over each autonomous polity according to its own laws, raising funds under each tax structure, dealing separately with each "Corts" or "Cortes", particularly the Kingdom of Aragon, the Principality of Catalonia and the Kingdom of Valencia. The larger Crown of Aragon must not be confused with one of its constituent parts, the Kingdom of Aragon, from which it takes its name.