Question: Which European empire, divided into autonomous kingdoms and ruled by an emperor with little authority outside of his own kingdom, is the subject of the "Annales mosellani"?
Sentence (from "Carolingian Empire"): After a civil war (840–43) following the death of Emperor Louis the Pious, the empire was divided into autonomous kingdoms, with one king still recognised as emperor, but with little authority outside his own kingdom.
Relevant evidence: Yes