Simplistically put, the Baron's War was fought over money and power; the major nobles of England thought that King Henry III had too much of the latter and was exercising it poorly.

简单说来，这个王爵之战是为金钱和权力的战争。英国主要贵族认为国王亨利三世拥有太多权力而且行使不当。

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The version that became part of the first English statute in 1297 was the one signed by King Henry III in 1225.

BBC: Is Magna Carta overrated?

He was king from 1272 on the death of his father Henry III.

CNN: Wednesday,

Pope Gregory VII may have humiliated the Emperor Henry IV, as Innocent III later humiliated Philip Augustus of France and King John of England.

ECONOMIST: Medieval history