* Catalan: This was the language of the royal court and administration, and it was widely spoken in the eastern part of the Crown, particularly in Catalonia, Valencia, and the Balearic Islands.
* Aragonese: This Romance language was spoken in the western part of the Crown, particularly in Aragon and parts of Castile.
However, it's important to remember that other languages were also present within the Crown of Aragon:
* Castilian: This was becoming increasingly influential, especially in the later stages of the Crown's existence.
* Occitan: This language was spoken in the southwestern part of the Crown, primarily in the county of Roussillon.
* Arabic: This was spoken by the Muslim population, particularly in the eastern part of the Crown.
* Hebrew: This was spoken by the Jewish population, present in different parts of the Crown.
So, while Catalan and Aragonese were the two most prominent languages, the Crown of Aragon was a rich and complex linguistic tapestry.