Here is a list of the rulers of Aragon, now a region of north-eastern Spain. The Kingdom of Aragon included the present-day autonomous community of Aragon. The Aragonese kings of the House of Barcelona ruled as well Catalonia (which included Roussillon, nowadays the département of Pyrenées-Orientales in France), the kingdom of Valencia, the kingdom of Majorca, the kingdom of Sicily, Sardinia and assorted territories in the South of France, including the city of Montpellier. This state is referred to as the Crown of Aragon, as opposed to the Kingdom of Aragon (i.e. Aragon proper)
NOTE:
Names and order of rulers is extremely uncertain. Other persons cited as counts of Aragon include, among others, Jimeno Aznar, Galindo García and Fortun Jiménez, that seems to be from the kingdom of Sobrarbe.
During the war (officially in 1707) Philip d'Anjou, the first of the Bourbon dinasty in Spain, disbanded the Crown of Aragon. After this time, there are no more Aragonese monarchs. Nevertheless, Spanish monarchs up to Isabel II, while styling themselves king/queen of Spain on coins, still used some of the traditional nomenclature of the defunct Crown of Aragon in their official documents: King/Queen of Castile, Leon, Aragon, both Sicilies, Jerusalem, Navarra, Granada, Toledo, Valencia, Galicia, Majorca, Sevilla, Sardinia, Cordova, Corsica, Murcia, Jaen, the Algarve, Algeciras, Gibraltar, the Canary Islands, the Eastern & Western Indias, the Islands & Mainland of the Ocean sea; Archduke of Austria; Duke of Burgundy, Brabant, Milan; Count of Habsburg, Flanders, Tyrol, Barcelona; Lord of Biscay, Molina.