In the year 1265, a rebel leader named Simon de Montfort did something that would eventually reshape the world: he invited common townsmen to sit in a royal council. This was not a standard royal summons but a desperate political maneuver during the Second Barons' War, designed to secure his power after winning the Battle of Lewes. Before this moment, the Magnum Concilium, or Great Council, consisted only of ecclesiastics, noblemen, and knights of the shire who represented the counties. De Montfort's inclusion of representatives from major towns was a radical departure that proved so popular it became the blueprint for the future. When King Edward I called the Model Parliament in 1295, he formalized this practice, establishing that every county would send two knights of the shire and every borough would send two burgesses. These burgesses were initially powerless figures, easily excluded if they showed too much independence, yet their presence laid the groundwork for a body that would one day challenge the monarch himself.
The Birth of a Separate Chamber
The year 1341 marked the first time the English Parliament split into two distinct groups, creating the House of Commons as a separate entity from the nobility and clergy. This division occurred during the reign of Edward III, transforming a single assembly into what historians now recognize as an Upper Chamber and a Lower Chamber. The knights and burgesses sat together in this new Lower Chamber, while the clergy and nobility formed the House of Lords. Although they remained subordinate to the Crown and the Lords, the Commons began to act with increasing boldness. The Good Parliament of 1376 stands as a pivotal moment in this evolution, when the Commons appointed Peter de la Mare to deliver their grievances directly to the Lords. De la Mare demanded an accounting of royal expenditures, criticized the King's military management, and even impeached several of the King's ministers. His actions led to his imprisonment, yet the strategy proved so effective that the office of Speaker of the House of Commons was created to give the Commons a single, unified voice. De la Mare was released after the death of King Edward III and went on to serve as the second speaker in 1377.The Crown's Shifting Power
The reign of Richard II saw the Commons continue to assert their authority by impeaching errant ministers and insisting on control over taxation and public expenditures. However, the balance of power shifted dramatically during the civil wars of the late fifteenth century, which diminished the power of the great noblemen and restored the absolute supremacy of the Sovereign. Under the House of Tudor, particularly Henry VII, the monarch grew fiscally independent, leaving both houses of Parliament with little power for several years. The dynamic changed again when Henry VIII called the Reformation Parliament, which sat from 1529 to 1536. Acting under the direction of Thomas Cromwell, this Parliament passed laws affecting all aspects of national life, especially religious matters previously reserved to the church. While the King and his ministers directed the proceedings, Parliament acquired universal legal competence and responsibility for all matters affecting the realm. When the House of Stuart came to the throne in 1603, the Crown once again became dependent on Parliament for revenue, reigniting conflicts over taxation, religion, and royal powers that would eventually lead to war.