House of Valois-Burgundy
The leaders of both parties were closely related to the French king through the male line. For this reason, they were called "princes of the blood", and exerted much influence on the affairs of the kingdom of France. Their rivalries and disputes for control of the government would serve as much of the basis for the conflict. The Orléans branch of the family, also referred to as House of Valois-Orléans, stemmed from Louis I, Duke of Orléans, younger son of King Charles V of France (r. 1364-1380). The House of Valois-Burgundy originated from Charles V's youngest brother, Philip the Bold, the Duke of Burgundy. Both their respective namesake duchies of Orléans and Burgundy were held in the status of appanage, as none of its holders were first in the line of succession to the French throne.