The assembly, convened in 1295 by King Edward I of England, represented a significant development in the evolution of English governance. It brought together not only nobles and clergy, as had been customary in earlier assemblies, but also representatives from the shires (knights) and boroughs (burgesses). This broader inclusion aimed to create a more representative body capable of advising the king on matters of state and, crucially, granting taxes.
The assembly emerged from a period of political and financial strain for the English monarchy. Edward I required funds to finance his ongoing wars, particularly in Wales and Scotland. Previous methods of raising revenue, relying primarily on the nobility and the Church, proved insufficient and generated discontent. The king sought a more reliable and widespread base of support for his fiscal policies. Further, the inclusion of commoners provided a degree of legitimacy to royal demands, theoretically mitigating resistance to taxation.