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
Hugh I, Count of Blois Avesnes and Margaret of Blois. They had 5 children: Through his marriage Hugh became the first count of Blois from the house of Châtillon. It marked the end of the first dynasty of Blois that lasted over 400 years. After the death of Marie, Hugh married Mahaut, sister of Baldwin III, Count of Guînes. In 1226 the Cisterian nunnery Pont-aux-Dames in Couilly was founded by Hugh. Later Hugh, with the assistance of Philip Mécringes, founded a Cistercian nunnery at Troissy called "L'Amour-Dieu" in 1232. Hugh intended to follow the pious king Louis IX when he started on the Seventh Crusade,