It is worthy of note that Charles, unlike his father, did not delegate his mayoralty in Neustria and Burgundy to any one, even a son, and that he styled himself _major domus_ for Austrasia as well as for the other kingdoms, a title which for some reason seems not to have been claimed by his father. It is also noteworthy that he finally got the needed Merovingian _fainéant_ into his possession by a compromise with Eudo of Aquitaine who had carried him off from the unfought battlefield of Soissons. There are many indications that both Eudo and Charles felt the necessity of sparing one another’s strength and not pushing any dispute between them to extremities, in view of the far more tremendous danger which threatened them and all Christendom from the turbaned followers of the Prophet who were now beginning to swarm over the passes of the Pyrenees. It was in 711, three years before Pippin’s death, that the Visigothic monarchy of Spain fell before the Moslem invader. In 716 the Moors seem to have first entered Gaul in detached squadrons. In 720, the year after the campaign of Soissons, they invaded Gaul in force, took Narbonne and established themselves in the old Visigothic province of Septimania, from which they were not finally dislodged for nearly forty years. They besieged Toulouse with many great engines of war, and their retreat from this place, compelled by the appearance of Duke Eudo with an army, may be noted as the first sign of ebb in the tide of Moslem conquest in Western Europe.