According to Aragonese law, the monarch had to swear allegiance to the kingdom's laws before being accepted as king. Like other Pyrenean and Basque realms, the Aragonese justice and decision-making system was based on Pyrenean consuetudinary law, the King was considered primus inter pares ('first among equals') within the nobility. A nobleman with the title "Chustizia d'Aragón" acted as ombudsman and was responsible for ensuring that the King obeyed the Aragonese laws. An old saying goes, "en Aragón antes de Rey hubo Ley" ("in Aragon Law came before King"), similar to the saying in Navarre, "antes fueron Leyes que Reyes", with much the same meaning.
According to Aragonese law, the monarch had to swear allegiance to the kingdom's laws before being accepted as king. Like other Pyrenean and Basque realms, the Aragonese justice and decision-making system was based on Pyrenean consuetudinary law, the King was considered primus inter pares ('first among equals') within the nobility. A nobleman with the title "Chustizia d'Aragón" acted as ombudsman and was responsible for ensuring that the King obeyed the Aragonese laws. An old saying goes, "en Aragón antes de Rey hubo Ley" ("in Aragon Law came before King") similar to the saying in Navarre, "antes fueron Leyes que Reyes", with much the same meaning.