 By the time of the dynastic union between Ferdinand and Isabella, the Crown of Aragon encompassed many different territories, including ones in other parts of the Mediterranean Sea, though only four remain within Spain's borders now.At the time of the union, and long afterwards, those territories were known as the Kingdom of Aragon, the Principality of Catalonia, the Kingdom of Valencia, and the Kingdom of Majorca.Despite all being under the same crown, each kingdom effectively had its own distinct government.