section_path: King of the Franks and the Lombards/Continued wars with the Saxons and Avars
section_name: Continued wars with the Saxons and Avars
paragraph_text: Continued wars with the Saxons and Avars
  
  Charlemagne gathered an army after the council of Frankfurt as Saxon resistance continued, beginning a series of annual campaigns which lasted through 799. The campaigns of the 790s were even more destructive than those of earlier decades, with the annal writers frequently noting Charlemagne "burning", "ravaging", "devastating", and "laying waste" the Saxon lands. Charlemagne forcibly removed a large number of Saxons to Francia, installing Frankish elites and soldiers in their place. His extended wars in Saxony led to his establishing his court in Aachen, which had easy access to the frontier. He built a large palace there, including a chapel which is now part of the Aachen Cathedral. Einhard joined the court at that time. Pepin of Italy (Carloman) engaged in further wars against the Avars in the south, which led to the collapse of their kingdom and the eastward expansion of Frankish rule.
  
  Charlemagne also worked to expand his influence through diplomatic means during the 790s wars, focusing on the Anglo-Saxon kingdoms of Britain. Charles the Younger proposed a marriage pact with the daughter of King Offa of Mercia, but Offa insisted that Charlemagne's daughter Bertha also be given as a bride for his son. Charlemagne refused the arrangement, and the marriage did not take place. Charlemagne and Offa entered into a formal peace in 796, protecting trade and securing the rights of English pilgrims to pass through Francia on their way to Rome. Charlemagne was also the host and protector of several deposed English rulers who were later restored: Eadbehrt of Kent, Ecgberht, King of Wessex, and Eardwulf of Northumbria. Nelson writes that Charlemagne treated the Anglo-Saxon kingdoms "like satellite states," establishing direct relations with English bishops. Charlemagne also forged an alliance with Alfonso II of Asturias, although Einhard calls Alfonso his "dependent". Following his sack of Lisbon in 798, Alfonso sent Charlemagne trophies of his victory, including armour, mules and prisoners.