The signing of the Magna Carta in 1215 by King John of England?

The Magna Carta or "Great Charter" limited royal power over the nobility. King John was forced to sign the Magna Carta by rebellious barons who resented his attempts to tax them. The Magna Carta guaranteed the traditional rights of the English nobility. For example, King John agreed to consult a Great Council composed of high nobles and Church officials before placing any new taxes.