A major event that happened in 1215 that limited the power of the monarchy in England was the signing of the Magna Carta. This seminal document was signed by King John at Runnymede, near London, following pressure from rebellious barons seeking to curtail the king's arbitrary rule. The Magna Carta established principles of legal protection and the rule of law, asserting that even the king was subject to the law. Key provisions included safeguarding church rights, limiting taxation without consent, and ensuring fair trials. The Magna Carta is often viewed as a foundational step toward constitutional governance and the development of democratic principles in England.