Counts of Dreux

In the tenth century the lands belonged to the forebears of the Capetians; they passed by marriage to Walter, Count of the Vexin, then to Richard I of Normandy.

In 1017 the lands were given as dowry to Richard's illegitimate daughter Matilda, who married Odo II, Count of Blois.

King Robert II of France confiscated the lands of Dreux from Odo, and they formed part of the royal domain until Louis the Fat granted the county of Dreux as an appanage to his son Robert.

King Charles gave the county of Dreux as a dowry in the marriage of his kinswoman Marguerite de Bourbon, daughter of Peter, Duke of Bourbon and of Isabella de Valois, daughter of Charles of Valois, with Arnaud-Amanieu d'Albret in 1382.

(2) Isabeau d'AvaugourThouarsJuly 1361no issues In 1377, the three sisters sold Dreux to the French crown.