Wars between England and France had been many, since William the Conqueror first linked their fortunes together by adding his English kingdom to his Norman duchy. They were bound to recur as long as the kings who ruled on this side of the Channel were possessed of continental dominions, which lay as near, or nearer, to their hearts than their insular realm. While the kingdom of France was weak, monarchs like Henry II. and Richard I. might dream of extending their transmarine possessions to the detriment of their suzerain at Paris. When France had grown strong, under Philip Augustus, the house of Plantagenet still retained a broad territory in Gascony and Guienne, and the house of Capet could not but covet the possession of the largest surviving feudal appanage which marred the solidarity of their kingdom. There had been a long interval of peace in the 13th century, because Henry III. of England was weak, and Louis IX. of France an idealist, much more set on forwarding the welfare of Christendom than the expansion of France. But the inevitable struggle had recommenced with the accession of the unscrupulous Philip IV. Its cause was simple; France was incomplete as long as the English king ruled at Bordeaux and Bayonne, and far up the valleys of the Garonne and the Adour. From 1293 onward Philip and his sons had been striving to make an end of the power of the Plantagenets in Aquitaine, sometimes by the simple argument of war, more frequently by the insidious process of encroaching on ducal rights, summoning litigants to Paris, and encouraging local magnates and cities alike to play off their allegiance to their suzerain against that to their immediate lord. Both in the time of Edward II. and in that of his son active violence had several times been called in to aid legal chicanery. Fortunately for the duke of Guienne the majority of his subjects had no desire to become Frenchmen; the Gascons felt no national sympathy with their neighbours of the north, and the towns in especial were linked to England by close ties of commerce, and had no wish whatever to break off their allegiance to the house of Plantagenet. The English rule, if often weak, had never proved tyrannical, and they had a great dread of French taxes and French officialism. But there were always individuals, more numerous among the noblesse than among the citizens, whose private interests impelled them to seek the aid of France.