 The barons anticipated that the King would act in accordance with these charters, subject to the law and moderated by the advice of the nobility.Uncertainty continued, and in 1227, when he was declared of age and able to rule independently, Henry announced that future charters had to be issued under his own seal.This brought into question the validity of the previous charters issued during his minority, and Henry actively threatened to overturn the Charter of the Forest unless the taxes promised in return for it were actually paid.