The county of Blois, itself the original seat of the Capetians but carved out of their dwindling domain in favour of a hostile house, had already been united with that of Chartres. The establishment of the same house in Troyes created a state which pressed upon Paris both from the west, south, and east, and was frequently hostile to it. Before long, this powerful line began to absorb the lesser feudatories of the eastern marchland, and to make its influence felt even over the great ecclesiastical dignitaries. After the county of Vitry was transferred from the obedience of the Archbishop of Reims to the authority of the counts of Troyes, the lords of the amalgamated fiefs assumed the wider title of counts of Champagne, and became one of the greatest powers in France. Against these gains the loss of Touraine was but a small one. Odo’s grandson, Stephen, Count of Blois and Chartres (1089–1102), was one of the heroes of the First Crusade, and the father, by his wife Adela, daughter of William the Conqueror, of a numerous family in whose time the house of Blois attained its highest prosperity. His second son, Theobald (II. of Champagne and IV. of Blois, called Theobald the Great, died 1152) reigned over both Blois and Champagne. His third son, Stephen, acquired not only the counties of Mortain and Boulogne but the throne of England. His fourth son, Henry, was the famous Bishop of Winchester. Though Blois and Champagne again separated under different lines of the house of Blois after Theobald’s death, their policy remained united, and their influence was still formidable. [Sidenote: Anjou.]