 During his short @-@ lived recovery in the 1390s , Charles made arrangements for Isabeau to be " principal guardian of the Dauphin " , their son , until he reached 13 years of age , giving her additional political power on the regency council . Charles appointed Isabeau co @-@ guardian of their children in 1393 , a position shared with the royal dukes and her brother , Louis of Bavaria , while he gave Orléans full power of the regency . In appointing Isabeau , Charles acted under laws enacted by his father , Charles V , which gave the Queen full power to protect and educate the heir to the throne . These appointments separated power between Orléans and the royal uncles , increasing ill @-@ will among the factions . The following year , as Charles ' bouts of illness became more severe and prolonged , Isabeau became the leader of the regency council , giving her power over the royal dukes and the Constable of France , while at the same time making her vulnerable to attack from various court factions . 
