 At the Peace of Chartres in March 1409 , John the Fearless was reinstated to the Royal Council after a public reconciliation with Orléans ' son , Charles , Duke of Orléans , at Chartres Cathedral , although the feuding continued . In December that year Isabeau bestowed the tutelle ( guardianship of the Dauphin ) upon John the Fearless , made him the master of Paris , and allowed him to mentor the Dauphin , after he had Jehan de Montagu , Grand Master of the King 's household , executed . At that point the Duke essentially controlled the Dauphin and Paris , and was popular in the city because of his opposition to taxes levied by Isabeau and Orléans . Isabeau 's actions with respect to John the Fearless angered the Armagnacs , who in the fall of 1410 marched to Paris to " rescue " the Dauphin from the Duke 's influence . At that time members of the University of Paris , Jean Gerson in particular , proposed that all feuding members of the Royal Council step down and be immediately removed from power . 
