 The new parliament passed a set of measures known as the Provisions of Oxford , which Henry <unk> to uphold . These provisions created a smaller council of 15 members , elected solely by the barons , which then had the power to appoint England 's <unk> , chancellor and treasurer , and which would be monitored through <unk> parliaments . <unk> from the lesser barons and the <unk> present at Oxford also helped to push through wider reform , intended to limit the abuse of power by both the King 's officials and the major barons . More radical measures were passed by the new council the next year , in the form of the Provisions of Westminster . 
