England's First Parliament: The Model Parliament of 1265

Summoned by King Henry III during the Second Barons' War, the Model Parliament (January 1265) was a landmark assembly that broadened representation beyond the great nobles.

Key Features

• Three Estates: Barons (nobility), clergy, and commons (knights of the shire + burgesses from towns).
• Purpose: Address baronial grievances, secure taxation consent for wars in Wales/France, and legitimize royal authority.
• Precedent: Established the principle that the king should consult a representative body for taxation and legislation—foundation of the modern UK Parliament.

Though short-lived, it set the template for the bicameral Parliament (Lords & Commons) that evolved over centuries.