House of Valois-Burgundy
The senior line of the House came to an end with the death of Margaret III in March 1405. She was succeeded in Flanders, Artois, Nevers and Franche-Comté by her eldest son John the Fearless and in Rethel by her younger son Anthony, which marked the start of the House of Valois-Burgundy. The junior line, springing from a younger son of Guy I reigning in Namur, ended in 1429. The earliest known member of the House of Dampierre is Guy I of Dampierre, great-grandson of Guy I of Montlhéry through his son Milo I of Montlhéry.