Counts of Blois Counts of Blois The County of Blois was originally centred on Blois, south of Paris, France. One of the chief cities, along with Blois itself, was Chartres. Blois was associated with Champagne Province, the House of Châtillon (who tended to reside in Blois), the Dukes of Brittany and, later, with the French royal family. Theobald I, Count of Blois served as Regent to Drogo, Duke of Brittany. Bertha of Blois, the daughter of Odo II of Blois, became Duchess Consort of Brittany through her marriage to Alan II, Duke of Brittany. Stephen Henry's son Stephen of Blois became King of
House of Blois House of Blois The House of Blois () is a lineage derived from the Frankish nobility, whose principal members were often named Theobald ("Thibaud", "Thibault", "Thibaut" in French). Heirs of the viscounts of Blois, the House of Blois accumulated the counties of Blois, Chartres, Châteaudun, Troyes, Meaux — as successors of Herbertians — etc., then the county of Champagne, and finally the kingdom of Navarre. The family was founded by Theobald the Old in the year 906. When Louis VII of France was greatly threatened by the vast collection of territories in the person of Henry II of England, he