The kings power
As you can see the magna carta controls the kings power so he doesn't send people to jail and take their house, but that's not exactly the way it happened because they didn't have jails they had dungeons. It also couldn't just happen like that because he is the king and he has the most power. But this is what it would actually say this, It was signed between the feudal barons and King John at Runnymede near Windsor Castle. The document was a series of written promises between the king and his subjects that he, the king, would govern England and deal with its people according to the customs of feudal law. Magna Carta was an attempt by the barons to stop a king - in this case John - abusing his power with the people of England suffering.