In 1311 the king was forced to agree to the election of the "ordainers," and the ordinances they drew up provided inter alia for the perpetual banishment of his favourite.
Figured among the Lords Ordainers; though, with more patriotism than some of his fellow-commissioners, he afterwards followed the king to Bannockburn.
As one of the "lords ordainers" he was a recognized leader of the opposition to Edward II.
And even of the restored archbishop, Winchelsea, who was anxious to uphold the privileges of his order, Langton, accused again by the barons in 1309, remained in prison after Edward's surrender to the "ordainers" in 1310.
He was released in January 1312 and again became treasurer; but he was disliked by the "ordainers," who forbade him to discharge the duties of his office.
Langton was one of the "ordainers" elected in 1310, and it was probably his connexion with this body that led to his losing the office of chancellor about this time.