Anonymus used Regino of Prüm's "Chronicon", that he mentioned as "the annals of chronicles" in his "Gesta". He accepted Regino of Prüm's view when identifying the Scythians as the Hungarians' ancestors. Sometimes, he misinterpreted his sources. For instance, he wrote of "the boundaries of the Caranthians of the Mura" ("Carinthinorum Moroanensium fines") instead of the "lands of the Carinthians, Moravians" ("Carantenorum, Marahensium ... fines") of which he read in Regino of Prüm's "Chronicon", which shows that Anonymus did not understand Regino of Prüm's reference to the Moravians.