Return through Vasconia to Auxerre. Mission to Aquitaine. Charlemagne's return, humiliated and grieving, is swift. It is a true gallop. He averages 25 km per day, considering that in six weeks he has traveled no less than 1,200 km, apart from the obligatory stays in one place or another, such as the one he made with his wife in Chasseneuil. On August 15, the Battle of Roncesvalles takes place; he immediately crosses all of Vasconia and Aquitaine, passes through Auxerre, and on September 24, he is already in Herstal, Belgium. Despite the haste of the march, he has time to make drastic decisions in Aquitaine. He is entrusted with the mission of caring for the Kingdom, guarding its borders, and supplying farm products to supply the royal villas in the north. Aquitaine borders Vasconia along the entire length of the Garonne, and the Muslim walis along the Pyrenees. He wants to have people he absolutely trusts in the Aquitanian administration to achieve these ends, and, since no native can be trusted, he appoints counts of Frankish lineage invulnerable to any cunning and violence of the Aquitanians. In this way, he tries to assimilate Aquitaine, equating it with the other northern provinces by strengthening royal authority and patrimonial resources. Vasconia, however, remains as it was. There is no historical record of Lupo II because he disappears from the scene, succeeded by his son. Charles plans to return to Vasconia and reach its borders within the Pamplona region of Vasconia. As will be seen a few years later, an attempt is made to carry out this undertaking of subjection as far as Pamplona. There is no news of dismissals in Aquitaine but there is news of the appointment of new counts in Bordeaux, Toulouse, Albi, Périgueux, Lemousin, Bourges, etc. For key towns such as Bordeaux and Toulouse, bordering on Vasconia and the first to take action against any uprising, he appoints the counts Sigwino and Chorson respectively. The Astronomer's text is as follows: Knowing, then, King Charles that a kingdom is like a body that is afflicted now by this discomfort and then by another, unless, using counsel and fortitude as physicians, the health received is pampered..., he constituted throughout Aquitaine counts, abbots and many others (subordinates) who are commonly known as vassals (all of them) of the lineage of the Franks, whose prudence and fortitude, with no cunning or violence, it would be safe to oppose, and he entrusted to them the care of the kingdom insofar as it seemed useful to him, the guarding of the borders and the provisioning of the royal towns with the products of the . And to the city of Bourges, first, he assigned Humbert as count..., to Tolosa Chorson..., Sigwino to Bordeaux... Auzias supposes, as is said in the false letter of Alan, that Lupo II was involved in all this impenetrable business of Roncesvalles but the succession of his son Lupo Sancho in the Duchy without any difficulty and in the service of the Franks eliminates all doubt. The ambush was plotted from Pamplona. Now, faced with the disaster, and its magnitude, the most urgent thing is for Aquitaine to watch over the Basques on the other side of the Garonne and the Muslims on the other side of the Pyrenees bordering the Empire.