"Palace" meaning "government" can be recognized in a remark of Paul the Deacon, writing c. AD 790 and describing events of the 660s: "When Grimuald set out for Beneventum, he entrusted his palace to Lupus" ("Historia Langobardorum", V.xvii). At the same time, Charlemagne was consciously reviving the Roman expression in his "palace" at Aachen, of which only his chapel remains. In the 9th century, the "palace" indicated the housing of the government too, and the constantly travelling Charlemagne built fourteen. In the early Middle Ages, the "palas" was usually that part of an imperial palace (or "Kaiserpfalz"), that housed the Great Hall, where affairs of state were conducted; it continued to be used as the seat of government in some German cities. In the Holy Roman Empire the powerful independent Electors came to be housed in palaces ("Paläste"). This has been used as evidence that power was widely distributed in the Empire; as in more centralized monarchies, only the monarch's residence would be a "palace".