It was now evident that the line of Charles the Great was about to expire in a worthless boy. While the young King Louis, as the chroniclers say, “did nothing,”[284] the duke of the French and his followers were almost openly preparing for the last step of all. The count of Anjou, following as ever closely in the wake of his overlord, now ventured on a bold aggression. Half by force, half by fraud, he had already carried his power beyond the Mayenne; he now crossed the Loire and attacked his southern neighbour the count of Poitou. Marching boldly down the road which led from Angers to Poitiers, he took Loudun, and was met at Les Roches by William Fierabras, whom he defeated in a pitched battle and pursued as far as a place which in the next generation was marked by the castle of Mirebeau. Of the subsequent details of the war we know nothing; it ended however in a compromise; Geoffrey kept the lands which he had won, but he kept them as the “man” of Duke William.[285] They seem to have consisted of a series of small fiefs scattered along the valleys of the little rivers Layon, Argenton, Thouet and Dive, which furrow the surface of northern Poitou.[286] The most important was Loudun, a little town some eighteen miles north-west of Poitiers. Even to-day its gloomy, crooked, rough-paved streets, its curious old houses, its quaintly-attired people, have a strangely old-world look; lines within lines of broken wall wind round the hill on whose slope the town is built, and in their midst stands a great square keep, the work of Geoffrey’s successors. He had won a footing in Poitou; they learned to use it for ends of which, perhaps, he could as yet scarcely dream. Loudun looked southward to Poitiers, but it looked northward and eastward too, up the valley of the Thouet which led straight up to Saumur, the border-fortress of Touraine and Anjou, and across the valley of the Vienne which led from the Angevin frontier into the heart of southern Touraine. Precious as it might be in itself, Loudun was soon to be far more precious as a point of vantage not so much against the lord of Poitiers as against the lord of Chinon, Saumur and Tours. [284] “Ludovicus qui nihil fecit” is the original form of the nickname usually rendered by “le Fainéant.” [285] See note D at end of chapter. [286] Fulk Nerra’s Poitevin castles, Maulévrier, Thouars, etc., must have been built on the ground won by Geoffrey.