 Violence again broke out after the assassination ; Isabeau had troops patrol Paris and , to protect the Dauphin Louis , Duke of Guyenne , she again left the city for Melun . In August she staged an entry to Paris for the Dauphin , and early in the new year Charles signed an ordinance giving the 13 @-@ year @-@ old the power to rule in the Queen 's absence . During these years Isabeau 's greatest concern was the Dauphin 's safety as she prepared him to take up the duties of the King ; she formed alliances to further those aims . At this point the Queen and her influence were still crucial to the power struggle . Physical control of Isabeau and her children became important to both parties and she was frequently forced to change sides , for which she was criticized and called unstable . She joined the Burgundians from 1409 to 1413 , and switched sides to form an alliance with the Orléanists from 1413 to 1415 . 
