All men throughout the kingdom were bound, under the penalty of confiscation, to swear obedience to the twenty-five barons; and the freeholders of each county were to choose twelve knights, who were to make report of such evil customs as required redress, conformably to the tenor of the Great Charter[56].  The names of those conservators were:  the Earls of Clare, Albemarle, Gloucester, Winchester, Hereford; Roger Bigod, Earl of Norfolk; Robert de Vere, Earl of Oxford; William Mareschal, the younger; Robert Fitz-Walter, Gilbert de Clare, Eustace de Vescey, Gilbert Delaval, William de Moubray, Geoffrey de Say, Roger de Mombezon, William de Huntingfield; Robert de Ros, the Constable of Chester; William de Aubenie, Richard de Perci, William Malet, John Fitz-Robert, William de Lanvalay, Hugh de Bigod, and Roger de Montfichet.  These men were, by this convention, really invested with the sovereignty of the kingdom; they were rendered cooerdinate with the King, or rather superior to him, in the exercise of the executive power; and as there was no circumstance of government which, either directly or indirectly, might not bear a relation to the security or observance of the Great Charter, there could scarcely occur any incident in which they might not lawfully interpose their authority.

John seemed to submit passively to all these regulations, however injurious to majesty.  He sent writs to all the sheriffs ordering them to constrain everyone to swear obedience to the twenty-five barons; he dismissed all his foreign forces; he pretended that his government was thenceforth to run in a new tenor and be more indulgent to the liberty and independence of his people.  But he only dissembled till he should find a favorable opportunity for annulling all his concessions.  The injuries and indignities which he had formerly suffered from the Pope and the King of France, as they came from equals or superiors, seemed to make but small impression on him; but the sense of this perpetual and total subjection under his own rebellious vassals sank deep in his mind; and he was determined, at all hazards, to throw off so ignominious a slavery.

He grew sullen, silent, and reserved; he shunned the society of his courtiers and nobles; he retired into the Isle of Wight, as if desirous of hiding his shame and confusion; but in this retreat he meditated the most fatal vengeance against all his enemies.  He secretly sent abroad his emissaries to enlist foreign soldiers, and to invite the rapacious Brabancons into his service, by the prospect of sharing the spoils of England and reaping the forfeitures of so many opulent barons who had incurred the guilt of rebellion by rising in arms against him.  And he despatched a messenger to Rome, in order to lay before the Pope the Great Charter, which he had been compelled to sign, and to complain, before that tribunal, of the violence which had been imposed upon him.