How did the barons reduce royal power under Henry III?

History

Which set of provisions limited the power Henry had as king in 1258?

Which group had a say in helping to rule England after 1265?

Which two groups began to question the barons?

Which of these helped Henry rule England at the beginning of his reign?

What was a reason for the barons losing trust in Henry?

What caused the Pope to threaten to excommunicate Henry?

Henry tried to regain the lands of which empire?

What helped to rule England before Henry was old enough to rule for himself?