He was master, in the right of his father, of Anjou and Touraine; in that of his mother, of Normandy and Maine; in that of his wife, of Guienne, Poictou, Xaintonge, Auvergne, Perigord, Angoumois, the Limousin.

He soon after annexed Brittany to his other states, and was already possessed of the superiority over that province, which, on the first cession of Normandy to Rollo the Dane, had been granted by Charles the Simple in vassalage to that formidable ravager.
These provinces composed above a third of the whole French monarchy, and were much superior, in extent and opulence, to those territories which were subjected to the immediate jurisdiction and government of the king.
The vassal was here more powerful than his liege lord: the situation which had enabled Hugh Capet to depose the Carlovingian princes, seemed to be renewed, and that with much greater advantages on the side of the vassal: and when England was added to so many provinces, the French king had reason to apprehend, from this conjuncture, some great disaster to himself and to his family.

But, in reality, it was this circumstance, which appeared so formidable, that saved the Capetian race, and, by its consequences, exalted them to that pitch of grandeur which they at present enjoy.
The limited authority of the prince in the feudal constitutions, prevented the king of England from employing with advantage the force of so many states which were subjected to his government; and these different members, disjoined in situation, and disagreeing in laws, language, and manners, were never thoroughly cemented into one monarchy.
He soon became, both from his distant place of residence and from the incompatibility of interests, a kind of foreigner to his French dominions; and his subjects on the continent considered their allegiance as more naturally due to their superior lord, who lived in their neighborhood, and who was acknowledged to be the supreme head of their nation.

He was always at hand to invade them; their immediate lord was often at too great a distance to protect them; and any disorder in any part of his dispersed dominions gave advantages against him The other powerful vassals of the French crown were rather pleased to see the expulsion of the English, and were not affected with that jealousy which would have arisen from the oppression of a co-vassal who was of the same rank with themselves.

By this means, the king of France found it more easy to conquer those numerous provinces from England than to subdue a duke of Normandy or Guienne, a count of Anjou, Maine, or Poietou.
And after reducing such extensive territories, which immediately incorporated with the body of the monarchy, he found greater facility in uniting to the crown the other great fiefs which still remained separate and independent.
But as these important consequences could not be foreseen by human wisdom, the king of France remarked with terror the rising grandeur of the house of Anjou or Plantagenet; and in order to retard its progress, he had ever maintained a strict union with Stephen, and had endeavored to support the tottering fortunes of that bold usurper.